@microsoft/applicationinsights-dependencies-js - npm Package Compare versions

Comparing version 2.1.1 to 2.2.0

browser/applicationinsights-dependencies-js.min.js

 /*!
- * Application Insights JavaScript SDK - Dependencies Plugin, 2.1.1
+ * Application Insights JavaScript SDK - Dependencies Plugin, 2.2.0
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
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s.aiDataContract={ver:h.Required,name:h.Default,url:h.Default,duration:h.Default,perfTotal:h.Default,networkConnect:h.Default,sentRequest:h.Default,receivedResponse:h.Default,domProcessing:h.Default,properties:h.Default,measurements:h.Default},s.url=U.sanitizeUrl(e,n),s.name=U.sanitizeString(e,t)||L.NotSpecified,s.properties=U.sanitizeProperties(e,a),s.measurements=U.sanitizeMeasurements(e,i),o&&(s.domProcessing=o.domProcessing,s.duration=o.duration,s.networkConnect=o.networkConnect,s.perfTotal=o.perfTotal,s.receivedResponse=o.receivedResponse,s.sentRequest=o.sentRequest),s}var Ye,$e,Ze;K(et,Ye=Y);function et(e,t){var n=Ye.call(this)||this;return n.aiDataContract={baseType:h.Required,baseData:h.Required},n.baseType=e,n.baseData=t,n}(Ze=$e||($e={}))[Ze.Verbose=0]="Verbose",Ze[Ze.Information=1]="Information",Ze[Ze.Warning=2]="Warning",Ze[Ze.Error=3]="Error",Ze[Ze.Critical=4]="Critical";var tt=(nt.getConfig=function(e,t,n,r){var a;return void 0===r&&(r=!1),a=n&&e.extensionConfig&&e.extensionConfig[n]&&!c.isNullOrUndefined(e.extensionConfig[n][t])?e.extensionConfig[n][t]:e[t],c.isNullOrUndefined(a)?r:a},nt);function nt(){}var rt=(at.create=function(e,t,n,r,a,i){if(n=U.sanitizeString(r,n)||L.NotSpecified,c.isNullOrUndefined(e)||c.isNullOrUndefined(t)||c.isNullOrUndefined(n))throw Error("Input doesn't contain all required fields");var o={name:n,time:(new Date).toISOString(),iKey:"",ext:i||{},tags:[],data:{},baseType:t,baseData:e};if(!c.isNullOrUndefined(a))for(var s in a)a.hasOwnProperty(s)&&(o.data[s]=a[s]);return o},at);function at(){}var it=function(){this.openDone=!1,this.setRequestHeaderDone=!1,this.sendDone=!1,this.abortDone=!1,this.onreadystatechangeCallbackAttached=!1},ot=(st.prototype.getAbsoluteUrl=function(){return this.requestUrl?F.getAbsoluteUrl(this.requestUrl):null},st.prototype.getPathName=function(){return 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c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.attachEvent)?c.isNullOrUndefined(e.addEventListener)||(e.addEventListener(t,n,!1),r=!0):(e.attachEvent("on"+t,n),r=!0)),r},lt.DetachEvent=function(e,t,n){c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.detachEvent)?c.isNullOrUndefined(e.removeEventListener)||e.removeEventListener(t,n,!1):e.detachEvent("on"+t,n))},lt);function lt(){}var ut=(dt.prototype.isMonitoredInstance=function(e,t,n,r){var a=!1,i=!0,o=!1;return void 0!==n?(o=this._fetchInitialized,a="object"==typeof n&&!0===n[B]||!!r&&!0===r[B]):void 0!==e&&(o=this.initialized,a=!0===e[B],i=!0===t||!c.isNullOrUndefined(e.ajaxData)),o&&i&&!a},dt.prototype.supportsAjaxMonitoring=function(){var e=!0;return(c.isNullOrUndefined(XMLHttpRequest)||c.isNullOrUndefined(XMLHttpRequest.prototype)||c.isNullOrUndefined(XMLHttpRequest.prototype.open)||c.isNullOrUndefined(XMLHttpRequest.prototype.send)||c.isNullOrUndefined(XMLHttpRequest.prototype.abort))&&(e=!1),e},dt.prototype.instrumentOpen=function(){var r=XMLHttpRequest.prototype.open,a=this;XMLHttpRequest.prototype.open=function(e,t,n){try{!a.isMonitoredInstance(this,!0)||this.ajaxData&&this.ajaxData.xhrMonitoringState.openDone||a.openHandler(this,e,t,n)}catch(e){a._core.logger.throwInternal(i.CRITICAL,x,"Failed to monitor XMLHttpRequest.open, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(this),exception:L.dump(e)})}return r.apply(this,arguments)}},dt.prototype.openHandler=function(e,t,n,r){var a;a=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID?"|"+this._context.telemetryTrace.traceID+"."+L.newId():L.newId();var i=new ot(a,this._core.logger);i.method=t,i.requestUrl=n,i.xhrMonitoringState.openDone=!0,e.ajaxData=i,this.attachToOnReadyStateChange(e)},dt.getFailedAjaxDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||c.isNullOrUndefined(e.ajaxData)||c.isNullOrUndefined(e.ajaxData.requestUrl)||(t+="(url: '"+e.ajaxData.requestUrl+"')")}catch(e){}return t},dt.prototype.instrumentSend=function(){var t=XMLHttpRequest.prototype.send,n=this;XMLHttpRequest.prototype.send=function(e){try{n.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.sendDone&&n.sendHandler(this,e)}catch(e){n._core.logger.throwInternal(i.CRITICAL,D,"Failed to monitor XMLHttpRequest, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(this),exception:L.dump(e)})}return t.apply(this,arguments)}},dt.prototype.sendHandler=function(e,t){e.ajaxData.requestSentTime=X.Now(),(e=this.includeCorrelationHeaders(e.ajaxData,void 0,void 0,e)).ajaxData.xhrMonitoringState.sendDone=!0},dt.prototype.instrumentAbort=function(){var e=XMLHttpRequest.prototype.abort,t=this;XMLHttpRequest.prototype.abort=function(){try{t.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.abortDone&&(this.ajaxData.aborted=1,this.ajaxData.xhrMonitoringState.abortDone=!0)}catch(e){t._core.logger.throwInternal(i.CRITICAL,m,"Failed to monitor XMLHttpRequest.abort, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(this),exception:L.dump(e)})}return e.apply(this,arguments)}},dt.prototype.attachToOnReadyStateChange=function(n){var r=this;n.ajaxData.xhrMonitoringState.onreadystatechangeCallbackAttached=ct.AttachEvent(n,"readystatechange",function(){try{r.isMonitoredInstance(n)&&4===n.readyState&&r.onAjaxComplete(n)}catch(e){var t=L.dump(e);t&&-1!=t.toLowerCase().indexOf("c00c023f")||r._core.logger.throwInternal(i.CRITICAL,y,"Failed to monitor XMLHttpRequest 'readystatechange' 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t={id:e.ajaxData.id,target:e.ajaxData.getAbsoluteUrl(),name:e.ajaxData.getPathName(),type:"Ajax",duration:e.ajaxData.ajaxTotalDuration,success:200<=+e.ajaxData.status&&+e.ajaxData.status<400,responseCode:+e.ajaxData.status,method:e.ajaxData.method},n=this.getAjaxCorrelationContext(e);n&&(t.correlationContext=n),this.trackDependencyDataInternal(t),e.ajaxData=null}},dt.prototype.getAjaxCorrelationContext=function(t){try{var e=t.getAllResponseHeaders();if(null!==e&&-1!==e.toLowerCase().indexOf(R.requestContextHeaderLowerCase)){var n=t.getResponseHeader(R.requestContextHeader);return O.getCorrelationContext(n)}}catch(e){this._core.logger.throwInternal(i.WARNING,S,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(t),exception:L.dump(e)})}},dt.prototype.trackDependencyDataInternal=function(e,t,n){if(-1===this._config.maxAjaxCallsPerView||this._trackAjaxAttempts<this._config.maxAjaxCallsPerView){var r=rt.create(e,He.dataType,He.envelopeType,this._core.logger,t,n);this._core.track(r)}else this._trackAjaxAttempts===this._config.maxAjaxCallsPerView&&this._core.logger.throwInternal(i.CRITICAL,N,"Maximum ajax per page view limit reached, ajax monitoring is paused until the next trackPageView(). In order to increase the limit set the maxAjaxCallsPerView configuration parameter.",!0);++this._trackAjaxAttempts},dt.prototype.trackDependencyData=function(e,t){this.trackDependencyDataInternal(e,t)},dt.prototype.processTelemetry=function(e){this._nextPlugin&&this._nextPlugin.processTelemetry&&this._nextPlugin.processTelemetry(e)},dt.prototype.setNextPlugin=function(e){e&&(this._nextPlugin=e)},dt.prototype.instrumentFetch=function(){if(this.supportsFetch()&&!this._fetchInitialized){var r=window.fetch,a=this;window.fetch=function(t,e){var n;if(a.isFetchInstrumented(t)&&a.isMonitoredInstance(void 0,void 0,t,e))try{n=a.createFetchRecord(t,e),e=a.includeCorrelationHeaders(n,t,e)}catch(e){a._core.logger.throwInternal(i.CRITICAL,x,"Failed to monitor Window.fetch, monitoring data for this fetch call may be incorrect.",{ajaxDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:L.dump(e)})}return r(t,e).then(function(e){return a.onFetchComplete(e,n),e}).catch(function(e){throw a.onFetchFailed(t,n,e),e})},this._fetchInitialized=!0}},dt.prototype.isFetchInstrumented=function(e){return this._fetchInitialized&&!0!==e[B]},dt.prototype.supportsFetch=function(){var e=!0;return(!window||c.isNullOrUndefined(window.Request)||c.isNullOrUndefined(window.Request.prototype)||c.isNullOrUndefined(window.fetch))&&(e=!1),e},dt.prototype.createFetchRecord=function(e,t){var n;n=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID?"|"+this._context.telemetryTrace.traceID+"."+L.newId():L.newId();var r=new ot(n,this._core.logger);return r.requestSentTime=X.Now(),e instanceof Request?r.requestUrl=e?e.url:"":r.requestUrl=e,t&&t.method?r.method=t.method:e&&e instanceof Request?r.method=e.method:r.method="GET",r},dt.prototype.includeCorrelationHeaders=function(e,t,n,r){if(t){if(O.canIncludeCorrelationHeader(this._config,e.getAbsoluteUrl(),this.currentWindowHost)){n||(n={}),n.headers=new Headers(n.headers||t instanceof Request&&t.headers||{}),n.headers.set(R.requestIdHeader,e.id);var a=this._config.appId||this._context.appId();return a&&n.headers.set(R.requestContextHeader,R.requestContextAppIdFormat+a),n}return n}if(r){if(this.currentWindowHost&&O.canIncludeCorrelationHeader(this._config,r.ajaxData.getAbsoluteUrl(),this.currentWindowHost)){r.setRequestHeader(R.requestIdHeader,r.ajaxData.id);var i=this._config.appId||this._context.appId();i&&r.setRequestHeader(R.requestContextHeader,R.requestContextAppIdFormat+i)}return r}},dt.prototype.getFailedFetchDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||(t+="string"==typeof e?"(url: '"+e+"')":"(url: '"+e.url+"')")}catch(e){this._core.logger.throwInternal(i.CRITICAL,x,"Failed to grab failed fetch diagnostics message",{exception:L.dump(e)})}return t},dt.prototype.onFetchComplete=function(t,e){if(e)try{if(e.responseFinishedTime=X.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(i.WARNING,v,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var n={id:e.id,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:200<=t.status&&t.status<400,responseCode:t.status,properties:{HttpMethod:e.method}},r=this.getFetchCorrelationContext(t);r&&(n.correlationContext=r),this.trackDependencyDataInternal(n)}}catch(e){this._core.logger.throwInternal(i.WARNING,S,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:L.dump(e)})}},dt.prototype.onFetchFailed=function(t,e,n){if(e)try{if(e.responseFinishedTime=X.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(i.WARNING,v,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var r={id:e.id,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:!1,responseCode:0,properties:{HttpMethod:e.method}};this.trackDependencyDataInternal(r,{error:n.message})}}catch(e){this._core.logger.throwInternal(i.WARNING,S,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:L.dump(e)})}},dt.prototype.getFetchCorrelationContext=function(t){try{var e=t.headers.get(R.requestContextHeader);return O.getCorrelationContext(e)}catch(e){this._core.logger.throwInternal(i.WARNING,S,"Failed to get Request-Context correlation header as it may be not included in the response or not 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n=ve.call(this)||this;if(n.aiDataContract={id:h.Default,outerId:h.Default,typeName:h.Required,message:h.Required,hasFullStack:h.Default,stack:h.Default,parsedStack:h.Array},t instanceof Error){n.typeName=k.sanitizeString(e,t.name)||F.NotSpecified,n.message=k.sanitizeMessage(e,t.message)||F.NotSpecified;var r=t.stack;n.parsedStack=ye.parseStack(r),n.stack=k.sanitizeException(e,r),n.hasFullStack=F.isArray(n.parsedStack)&&0<n.parsedStack.length}else n.typeName=t.typeName,n.message=t.message,n.stack=t.stack,n.parsedStack=t.parsedStack,n.hasFullStack=t.hasFullStack;return n}var Ie,De=($(Se,Ie=le),Se.CreateFromInterface=function(e){return new Se(e,null)},Se.prototype.toInterface=function(){return{level:this.level,method:this.method,assembly:this.assembly,fileName:this.fileName,line:this.line}},Se.regex=/^([\s]+at)?(.*?)(\@|\s\(|\s)([^\(\@\n]+):([0-9]+):([0-9]+)(\)?)$/,Se.baseSize=58,Se);function Se(e,t){var n=Ie.call(this)||this;if(n.sizeInBytes=0,n.aiDataContract={level:h.Required,method:h.Required,assembly:h.Default,fileName:h.Default,line:h.Default},"string"==typeof e){var r=e;n.level=t,n.method="<no_method>",n.assembly=F.trim(r),n.fileName="",n.line=0;var a=r.match(Se.regex);a&&5<=a.length&&(n.method=F.trim(a[2])||n.method,n.fileName=F.trim(a[4]),n.line=parseInt(a[5])||0)}else n.level=e.level,n.method=e.method,n.assembly=e.assembly,n.fileName=e.fileName,n.line=e.line,n.sizeInBytes=0;return n.sizeInBytes+=n.method.length,n.sizeInBytes+=n.fileName.length,n.sizeInBytes+=n.assembly.length,n.sizeInBytes+=Se.baseSize,n.sizeInBytes+=n.level.toString().length,n.sizeInBytes+=n.line.toString().length,n}var Ce,_e,Ae,Ne=($(be,Ce=ae),be);function be(){var e=Ce.call(this)||this;return e.ver=2,e.metrics=[],e.properties={},e}(Ae=_e=_e||{})[Ae.Measurement=0]="Measurement",Ae[Ae.Aggregation=1]="Aggregation";var we,Te=($(Me,we=function(){this.kind=_e.Measurement}),Me);function Me(){var 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s.aiDataContract={ver:h.Required,name:h.Default,url:h.Default,duration:h.Default,properties:h.Default,measurements:h.Default,id:h.Default},s.id=k.sanitizeId(e,o),s.url=k.sanitizeUrl(e,n),s.name=k.sanitizeString(e,t)||F.NotSpecified,isNaN(r)||(s.duration=F.msToTimeSpan(r)),s.properties=k.sanitizeProperties(e,a),s.measurements=k.sanitizeMeasurements(e,i),s}var Le,Fe=($(Oe,Le=ae),Oe);function Oe(){var e=Le.call(this)||this;return e.ver=2,e.success=!0,e.properties={},e.measurements={},e}var ze,Pe=($(Ge,ze=Fe),Ge.envelopeType="Microsoft.ApplicationInsights.{0}.RemoteDependency",Ge.dataType="RemoteDependencyData",Ge);function Ge(e,t,n,r,a,i,o,s,c,u,l){void 0===c&&(c="Ajax");var d=ze.call(this)||this;d.aiDataContract={id:h.Required,ver:h.Required,name:h.Default,resultCode:h.Default,duration:h.Default,success:h.Default,data:h.Default,target:h.Default,type:h.Default,properties:h.Default,measurements:h.Default,kind:h.Default,value:h.Default,count:h.Default,min:h.Default,max:h.Default,stdDev:h.Default,dependencyKind:h.Default,dependencySource:h.Default,commandName:h.Default,dependencyTypeName:h.Default},d.id=t,d.duration=F.msToTimeSpan(a),d.success=i,d.resultCode=o+"",d.type=k.sanitizeString(e,c);var p=X.ParseDependencyPath(e,n,s,r);return d.data=k.sanitizeUrl(e,r)||p.data,d.target=k.sanitizeString(e,p.target),d.name=k.sanitizeString(e,p.name),d.properties=k.sanitizeProperties(e,u),d.measurements=k.sanitizeMeasurements(e,l),d}var We,Xe=($(Ve,We=ae),Ve);function Ve(){var e=We.call(this)||this;return e.ver=2,e.properties={},e}var Be;$(Ke,Be=Xe),Ke.envelopeType="Microsoft.ApplicationInsights.{0}.Message",Ke.dataType="MessageData";function Ke(e,t,n,r){var a=Be.call(this)||this;return a.aiDataContract={ver:h.Required,message:h.Required,severityLevel:h.Default,properties:h.Default},t=t||F.NotSpecified,a.message=k.sanitizeMessage(e,t),a.properties=k.sanitizeProperties(e,r),n&&(a.severityLevel=n),a}var Qe,Je=($($e,Qe=je),$e);function $e(){var e=Qe.call(this)||this;return e.ver=2,e.properties={},e.measurements={},e}var Ye;$(Ze,Ye=Je),Ze.envelopeType="Microsoft.ApplicationInsights.{0}.PageviewPerformance",Ze.dataType="PageviewPerformanceData";function Ze(e,t,n,r,a,i,o){var s=Ye.call(this)||this;return s.aiDataContract={ver:h.Required,name:h.Default,url:h.Default,duration:h.Default,perfTotal:h.Default,networkConnect:h.Default,sentRequest:h.Default,receivedResponse:h.Default,domProcessing:h.Default,properties:h.Default,measurements:h.Default},s.url=k.sanitizeUrl(e,n),s.name=k.sanitizeString(e,t)||F.NotSpecified,s.properties=k.sanitizeProperties(e,a),s.measurements=k.sanitizeMeasurements(e,i),o&&(s.domProcessing=o.domProcessing,s.duration=o.duration,s.networkConnect=o.networkConnect,s.perfTotal=o.perfTotal,s.receivedResponse=o.receivedResponse,s.sentRequest=o.sentRequest),s}var et,tt,nt;$(rt,et=ee);function rt(e,t){var n=et.call(this)||this;return n.aiDataContract={baseType:h.Required,baseData:h.Required},n.baseType=e,n.baseData=t,n}(nt=tt=tt||{})[nt.Verbose=0]="Verbose",nt[nt.Information=1]="Information",nt[nt.Warning=2]="Warning",nt[nt.Error=3]="Error",nt[nt.Critical=4]="Critical";var at=(it.getConfig=function(e,t,n,r){var a;return void 0===r&&(r=!1),a=n&&e.extensionConfig&&e.extensionConfig[n]&&!c.isNullOrUndefined(e.extensionConfig[n][t])?e.extensionConfig[n][t]:e[t],c.isNullOrUndefined(a)?r:a},it);function it(){}var ot=(st.create=function(e,t,n,r,a,i){if(n=k.sanitizeString(r,n)||F.NotSpecified,c.isNullOrUndefined(e)||c.isNullOrUndefined(t)||c.isNullOrUndefined(n))throw Error("Input doesn't contain all required fields");var o={name:n,time:(new Date).toISOString(),iKey:"",ext:i||{},tags:[],data:{},baseType:t,baseData:e};if(!c.isNullOrUndefined(a))for(var s in a)a.hasOwnProperty(s)&&(o.data[s]=a[s]);return o},st);function st(){}var ct=function(){this.openDone=!1,this.setRequestHeaderDone=!1,this.sendDone=!1,this.abortDone=!1,this.onreadystatechangeCallbackAttached=!1},ut=(lt.prototype.getAbsoluteUrl=function(){return this.requestUrl?z.getAbsoluteUrl(this.requestUrl):null},lt.prototype.getPathName=function(){return this.requestUrl?k.sanitizeUrl(this._logger,z.getCompleteUrl(this.method,this.requestUrl)):null},lt);function lt(e,t,n){this.completed=!1,this.requestHeadersSize=null,this.requestHeaders=null,this.ttfb=null,this.responseReceivingDuration=null,this.callbackDuration=null,this.ajaxTotalDuration=null,this.aborted=null,this.pageUrl=null,this.requestUrl=null,this.requestSize=0,this.method=null,this.status=null,this.requestSentTime=null,this.responseStartedTime=null,this.responseFinishedTime=null,this.callbackFinishedTime=null,this.endTime=null,this.originalOnreadystatechage=null,this.xhrMonitoringState=new ct,this.clientFailure=0,this.CalculateMetrics=function(){this.ajaxTotalDuration=Math.round(1e3*B.GetDuration(this.requestSentTime,this.responseFinishedTime))/1e3},this.traceID=e,this.spanID=t,this._logger=n}var dt=(pt.AttachEvent=function(e,t,n){var r=!1;return c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.attachEvent)?c.isNullOrUndefined(e.addEventListener)||(e.addEventListener(t,n,!1),r=!0):(e.attachEvent("on"+t,n),r=!0)),r},pt.DetachEvent=function(e,t,n){c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.detachEvent)?c.isNullOrUndefined(e.removeEventListener)||e.removeEventListener(t,n,!1):e.detachEvent("on"+t,n))},pt);function pt(){}var ht=(ft.isValidTraceId=function(e){return e.match(/^[0-9a-f]{32}$/)&&"00000000000000000000000000000000"!==e},ft.isValidSpanId=function(e){return e.match(/^[0-9a-f]{16}$/)&&"0000000000000000"!==e},ft.prototype.toString=function(){return this.version+"-"+this.traceId+"-"+this.spanId+"-"+this.traceFlag},ft.DEFAULT_TRACE_FLAG="00",ft.DEFAULT_VERSION="00",ft);function ft(e,t){this.traceFlag=ft.DEFAULT_TRACE_FLAG,this.version=ft.DEFAULT_VERSION,e&&ft.isValidTraceId(e)?this.traceId=e:this.traceId=F.generateW3CId(),t&&ft.isValidSpanId(t)?this.spanId=t:this.spanId=F.generateW3CId().substr(0,16)}var gt=(mt.prototype.isMonitoredInstance=function(e,t,n,r){var a=!1,i=!0,o=!1;return void 0!==n?(o=this._fetchInitialized,a="object"==typeof n&&!0===n[Q]||!!r&&!0===r[Q]):void 0!==e&&(o=this.initialized,a=!0===e[Q],i=!0===t||!c.isNullOrUndefined(e.ajaxData)),o&&i&&!a},mt.prototype.supportsAjaxMonitoring=function(){var e=!0;return(c.isNullOrUndefined(XMLHttpRequest)||c.isNullOrUndefined(XMLHttpRequest.prototype)||c.isNullOrUndefined(XMLHttpRequest.prototype.open)||c.isNullOrUndefined(XMLHttpRequest.prototype.send)||c.isNullOrUndefined(XMLHttpRequest.prototype.abort))&&(e=!1),e},mt.prototype.instrumentOpen=function(){var r=XMLHttpRequest.prototype.open,a=this;XMLHttpRequest.prototype.open=function(e,t,n){try{!a.isMonitoredInstance(this,!0)||this.ajaxData&&this.ajaxData.xhrMonitoringState.openDone||a.openHandler(this,e,t,n)}catch(e){a._core.logger.throwInternal(o.CRITICAL,I,"Failed to monitor XMLHttpRequest.open, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return r.apply(this,arguments)}},mt.prototype.openHandler=function(e,t,n,r){var a=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID||F.generateW3CId(),i=F.generateW3CId().substr(0,16),o=new ut(a,i,this._core.logger);o.method=t,o.requestUrl=n,o.xhrMonitoringState.openDone=!0,o.requestHeaders={},e.ajaxData=o,this.attachToOnReadyStateChange(e)},mt.getFailedAjaxDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||c.isNullOrUndefined(e.ajaxData)||c.isNullOrUndefined(e.ajaxData.requestUrl)||(t+="(url: '"+e.ajaxData.requestUrl+"')")}catch(e){}return t},mt.prototype.instrumentSend=function(){var t=XMLHttpRequest.prototype.send,n=this;XMLHttpRequest.prototype.send=function(e){try{n.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.sendDone&&n.sendHandler(this,e)}catch(e){n._core.logger.throwInternal(o.CRITICAL,S,"Failed to monitor XMLHttpRequest, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return t.apply(this,arguments)}},mt.prototype.sendHandler=function(e,t){e.ajaxData.requestSentTime=B.Now(),(e=this.includeCorrelationHeaders(e.ajaxData,void 0,void 0,e)).ajaxData.xhrMonitoringState.sendDone=!0},mt.prototype.instrumentAbort=function(){var e=XMLHttpRequest.prototype.abort,t=this;XMLHttpRequest.prototype.abort=function(){try{t.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.abortDone&&(this.ajaxData.aborted=1,this.ajaxData.xhrMonitoringState.abortDone=!0)}catch(e){t._core.logger.throwInternal(o.CRITICAL,x,"Failed to monitor XMLHttpRequest.abort, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return e.apply(this,arguments)}},mt.prototype.instrumentSetRequestHeader=function(){if(this._config.enableRequestHeaderTracking){var n=XMLHttpRequest.prototype.setRequestHeader,r=this;XMLHttpRequest.prototype.setRequestHeader=function(e,t){try{r.isMonitoredInstance(this)&&(this.ajaxData.requestHeaders[e]=t)}catch(e){r._core.logger.throwInternal(o.CRITICAL,q,"Failed to monitor XMLHttpRequest.setRequestHeader, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return n.apply(this,arguments)}}},mt.prototype.attachToOnReadyStateChange=function(n){var r=this;n.ajaxData.xhrMonitoringState.onreadystatechangeCallbackAttached=dt.AttachEvent(n,"readystatechange",function(){try{r.isMonitoredInstance(n)&&4===n.readyState&&r.onAjaxComplete(n)}catch(e){var t=F.dump(e);t&&-1!=t.toLowerCase().indexOf("c00c023f")||r._core.logger.throwInternal(o.CRITICAL,D,"Failed to monitor XMLHttpRequest 'readystatechange' event handler, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(n),exception:F.dump(e)})}})},mt.prototype.onAjaxComplete=function(e){if(e.ajaxData.responseFinishedTime=B.Now(),e.ajaxData.status=e.status,e.ajaxData.CalculateMetrics(),e.ajaxData.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the ajax call, monitoring data for this ajax call won't be sent.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(e),requestSentTime:e.ajaxData.requestSentTime,responseFinishedTime:e.ajaxData.responseFinishedTime});else{var t={id:"|"+e.ajaxData.traceID+"."+e.ajaxData.spanID,target:e.ajaxData.getAbsoluteUrl(),name:e.ajaxData.getPathName(),type:"Ajax",duration:e.ajaxData.ajaxTotalDuration,success:200<=+e.ajaxData.status&&+e.ajaxData.status<400,responseCode:+e.ajaxData.status,method:e.ajaxData.method},n=this.getAjaxCorrelationContext(e);if(n&&(t.correlationContext=n),this._config.enableRequestHeaderTracking&&0<Object.keys(e.ajaxData.requestHeaders).length&&(t.properties=t.properties||{},t.properties.requestHeaders={},t.properties.requestHeaders=e.ajaxData.requestHeaders),this._config.enableResponseHeaderTracking){var r=e.getAllResponseHeaders();if(r){var a=r.trim().split(/[\r\n]+/),i={};a.forEach(function(e){var t=e.split(": "),n=t.shift(),r=t.join(": ");i[n]=r}),0<Object.keys(i).length&&(t.properties=t.properties||{},t.properties.responseHeaders={},t.properties.responseHeaders=i)}}this.trackDependencyDataInternal(t),e.ajaxData=null}},mt.prototype.getAjaxCorrelationContext=function(t){try{var e=t.getAllResponseHeaders();if(null!==e&&-1!==e.toLowerCase().indexOf(E.requestContextHeaderLowerCase)){var n=t.getResponseHeader(E.requestContextHeader);return G.getCorrelationContext(n)}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.trackDependencyDataInternal=function(e,t,n){if(-1===this._config.maxAjaxCallsPerView||this._trackAjaxAttempts<this._config.maxAjaxCallsPerView){var r=ot.create(e,Pe.dataType,Pe.envelopeType,this._core.logger,t,n);this._core.track(r)}else this._trackAjaxAttempts===this._config.maxAjaxCallsPerView&&this._core.logger.throwInternal(o.CRITICAL,N,"Maximum ajax per page view limit reached, ajax monitoring is paused until the next trackPageView(). In order to increase the limit set the maxAjaxCallsPerView configuration parameter.",!0);++this._trackAjaxAttempts},mt.prototype.trackDependencyData=function(e,t){this.trackDependencyDataInternal(e,t)},mt.prototype.processTelemetry=function(e){this._nextPlugin&&this._nextPlugin.processTelemetry&&this._nextPlugin.processTelemetry(e)},mt.prototype.setNextPlugin=function(e){e&&(this._nextPlugin=e)},mt.prototype.instrumentFetch=function(){if(this.supportsFetch()&&!this._fetchInitialized){var r=window.fetch,a=this;window.fetch=function(t,e){var n;if(a.isFetchInstrumented(t)&&a.isMonitoredInstance(void 0,void 0,t,e))try{n=a.createFetchRecord(t,e),e=a.includeCorrelationHeaders(n,t,e)}catch(e){a._core.logger.throwInternal(o.CRITICAL,I,"Failed to monitor Window.fetch, monitoring data for this fetch call may be incorrect.",{ajaxDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}return r(t,e).then(function(e){return a.onFetchComplete(e,n),e}).catch(function(e){throw a.onFetchFailed(t,n,e),e})},this._fetchInitialized=!0}},mt.prototype.isFetchInstrumented=function(e){return this._fetchInitialized&&!0!==e[Q]},mt.prototype.supportsFetch=function(){var e=!0;return(!window||c.isNullOrUndefined(window.Request)||c.isNullOrUndefined(window.Request.prototype)||c.isNullOrUndefined(window.fetch))&&(e=!1),e},mt.prototype.createFetchRecord=function(e,t){var n=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID||F.generateW3CId(),r=F.generateW3CId().substr(0,16),a=new ut(n,r,this._core.logger);return a.requestSentTime=B.Now(),e instanceof Request?a.requestUrl=e?e.url:"":a.requestUrl=e,t&&t.method?a.method=t.method:e&&e instanceof Request?a.method=e.method:a.method="GET",t&&t.headers&&this._config.enableRequestHeaderTracking?a.requestHeaders=t.headers:a.requestHeaders={},a},mt.prototype.includeCorrelationHeaders=function(e,t,n,r){if(t){if(G.canIncludeCorrelationHeader(this._config,e.getAbsoluteUrl(),this.currentWindowHost)){if((n=n||{}).headers=new Headers(n.headers||t instanceof Request&&t.headers||{}),this._isUsingAIHeaders){var a="|"+e.traceID+"."+e.spanID;n.headers.set(E.requestIdHeader,a),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.requestIdHeader]=a)}var i=this._config.appId||this._context.appId();if(i&&(n.headers.set(E.requestContextHeader,E.requestContextAppIdFormat+i),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.requestContextHeader]=E.requestContextAppIdFormat+i)),this._isUsingW3CHeaders){var o=new ht(e.traceID,e.spanID);n.headers.set(E.traceParentHeader,o.toString()),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.traceParentHeader]=o.toString())}return n}return n}if(r){if(this.currentWindowHost&&G.canIncludeCorrelationHeader(this._config,r.ajaxData.getAbsoluteUrl(),this.currentWindowHost)){this._isUsingAIHeaders&&(a="|"+r.ajaxData.traceID+"."+r.ajaxData.spanID,r.setRequestHeader(E.requestIdHeader,a),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.requestIdHeader]=a));var s=this._config.appId||this._context.appId();s&&(r.setRequestHeader(E.requestContextHeader,E.requestContextAppIdFormat+s),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.requestContextHeader]=E.requestContextAppIdFormat+s)),this._isUsingW3CHeaders&&(o=new ht(r.ajaxData.traceID,r.ajaxData.spanID),r.setRequestHeader(E.traceParentHeader,o.toString()),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.traceParentHeader]=o.toString()))}return r}},mt.prototype.getFailedFetchDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||(t+="string"==typeof e?"(url: '"+e+"')":"(url: '"+e.url+"')")}catch(e){this._core.logger.throwInternal(o.CRITICAL,I,"Failed to grab failed fetch diagnostics message",{exception:F.dump(e)})}return t},mt.prototype.onFetchComplete=function(t,e){if(e)try{if(e.responseFinishedTime=B.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var n={id:"|"+e.traceID+"."+e.spanID,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:200<=t.status&&t.status<400,responseCode:t.status,properties:{HttpMethod:e.method}},r=this.getFetchCorrelationContext(t);if(r&&(n.correlationContext=r),this._config.enableRequestHeaderTracking&&0<Object.keys(e.requestHeaders).length&&(n.properties=n.properties||{},n.properties.requestHeaders=e.requestHeaders),this._config.enableResponseHeaderTracking){var a={};t.headers.forEach(function(e,t){a[t]=e}),0<Object.keys(a).length&&(n.properties=n.properties||{},n.properties.responseHeaders=a)}this.trackDependencyDataInternal(n)}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.onFetchFailed=function(t,e,n){if(e)try{if(e.responseFinishedTime=B.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var r={id:"|"+e.traceID+"."+e.spanID,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:!1,responseCode:0,properties:{HttpMethod:e.method}};this.trackDependencyDataInternal(r,{error:n.message})}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.getFetchCorrelationContext=function(t){try{var e=t.headers.get(E.requestContextHeader);return G.getCorrelationContext(e)}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.instrumentXhr=function(){this.supportsAjaxMonitoring()&&!this.initialized&&(this.instrumentOpen(),this.instrumentSend(),this.instrumentAbort(),this.instrumentSetRequestHeader(),this.initialized=!0)},mt.getDefaultConfig=function(){return{maxAjaxCallsPerView:500,disableAjaxTracking:!1,disableFetchTracking:!0,disableCorrelationHeaders:!1,distributedTracingMode:s.AI,correlationHeaderExcludedDomains:["*.blob.core.windows.net","*.blob.core.chinacloudapi.cn","*.blob.core.cloudapi.de","*.blob.core.usgovcloudapi.net"],correlationHeaderDomains:void 0,appId:void 0,enableCorsCorrelation:!1,enableRequestHeaderTracking:!1,enableResponseHeaderTracking:!1}},mt.getEmptyConfig=function(){return{maxAjaxCallsPerView:void 0,disableAjaxTracking:void 0,disableFetchTracking:void 0,disableCorrelationHeaders:void 0,distributedTracingMode:void 0,correlationHeaderExcludedDomains:void 0,appId:void 0,enableCorsCorrelation:void 0,correlationHeaderDomains:void 0,enableRequestHeaderTracking:void 0,enableResponseHeaderTracking:void 0}},mt.prototype.initialize=function(e,t,n){if(!this.initialized&&!this._fetchInitialized){this._core=t;var r=mt.getDefaultConfig();for(var a in this._config=mt.getEmptyConfig(),r)this._config[a]=at.getConfig(e,a,mt.identifier,r[a]);if(this._isUsingAIHeaders=this._config.distributedTracingMode===s.AI||this._config.distributedTracingMode===s.AI_AND_W3C,this._isUsingW3CHeaders=this._config.distributedTracingMode===s.AI_AND_W3C||this._config.distributedTracingMode===s.W3C,!1===this._config.disableAjaxTracking&&this.instrumentXhr(),!1===this._config.disableFetchTracking&&this.instrumentFetch(),0<n.length&&n){for(var i=void 0,o=0;!i&&o<n.length;)n[o]&&"AppInsightsPropertiesPlugin"===n[o].identifier&&(i=n[o]),o++;i&&(this._context=i.context)}}},mt.identifier="AjaxDependencyPlugin",mt);function mt(){this._trackAjaxAttempts=0,this.identifier=mt.identifier,this.priority=120,this.currentWindowHost=window&&window.location&&window.location.host&&window.location.host.toLowerCase(),this.initialized=!1,this._fetchInitialized=!1}e.AjaxPlugin=gt,e.ajaxRecord=ut,Object.defineProperty(e,"__esModule",{value:!0})});
 //# sourceMappingURL=applicationinsights-dependencies-js.min.js.map

dist-esm/ajax.js

 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
-import { RequestHeaders, Util, CorrelationIdHelper, TelemetryItemCreator, RemoteDependencyData, DateTimeUtils, DisabledPropertyName, ConfigurationManager, PropertiesPluginIdentifier } from '@microsoft/applicationinsights-common';
+import { RequestHeaders, Util, CorrelationIdHelper, TelemetryItemCreator, RemoteDependencyData, DateTimeUtils, DisabledPropertyName, ConfigurationManager, PropertiesPluginIdentifier, DistributedTracingModes } from '@microsoft/applicationinsights-common';
 import { CoreUtils, LoggingSeverity, _InternalMessageId } from '@microsoft/applicationinsights-core-js';
 import { ajaxRecord } from './ajaxRecord';
 import { EventHelper } from './ajaxUtils';
+import { Traceparent } from './TraceParent';
 var AjaxMonitor = /** @class */ (function () {
@@ -82,14 +83,9 @@ function AjaxMonitor() {
     AjaxMonitor.prototype.openHandler = function (xhr, method, url, async) {
-        var id;
-        if (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) {
-            // this format corresponds with activity logic on server-side and is required for the correct correlation
-            id = "|" + this._context.telemetryTrace.traceID + "." + Util.newId();
-        }
-        else {
-            id = Util.newId();
-        }
-        var ajaxData = new ajaxRecord(id, this._core.logger);
+        var traceID = (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) || Util.generateW3CId();
+        var spanID = Util.generateW3CId().substr(0, 16);
+        var ajaxData = new ajaxRecord(traceID, spanID, this._core.logger);
         ajaxData.method = method;
         ajaxData.requestUrl = url;
         ajaxData.xhrMonitoringState.openDone = true;
+        ajaxData.requestHeaders = {};
         xhr.ajaxData = ajaxData;
@@ -152,2 +148,23 @@ this.attachToOnReadyStateChange(xhr);
     };
+    AjaxMonitor.prototype.instrumentSetRequestHeader = function () {
+        if (!this._config.enableRequestHeaderTracking) {
+            return;
+        }
+        var originalSetRequestHeader = XMLHttpRequest.prototype.setRequestHeader;
+        var ajaxMonitorInstance = this;
+        XMLHttpRequest.prototype.setRequestHeader = function (header, value) {
+            try {
+                if (ajaxMonitorInstance.isMonitoredInstance(this)) {
+                    this.ajaxData.requestHeaders[header] = value;
+                }
+            }
+            catch (e) {
+                ajaxMonitorInstance._core.logger.throwInternal(LoggingSeverity.CRITICAL, _InternalMessageId.FailedMonitorAjaxSetRequestHeader, "Failed to monitor XMLHttpRequest.setRequestHeader, monitoring data for this ajax call may be incorrect.", {
+                    ajaxDiagnosticsMessage: AjaxMonitor.getFailedAjaxDiagnosticsMessage(this),
+                    exception: Util.dump(e)
+                });
+            }
+            return originalSetRequestHeader.apply(this, arguments);
+        };
+    };
     AjaxMonitor.prototype.attachToOnReadyStateChange = function (xhr) {
@@ -188,3 +205,3 @@ var ajaxMonitorInstance = this;
             var dependency = {
-                id: xhr.ajaxData.id,
+                id: "|" + xhr.ajaxData.traceID + "." + xhr.ajaxData.spanID,
                 target: xhr.ajaxData.getAbsoluteUrl(),
@@ -203,2 +220,29 @@ name: xhr.ajaxData.getPathName(),
             }
+            if (this._config.enableRequestHeaderTracking) {
+                if (Object.keys(xhr.ajaxData.requestHeaders).length > 0) {
+                    dependency.properties = dependency.properties || {};
+                    dependency.properties.requestHeaders = {};
+                    dependency.properties.requestHeaders = xhr.ajaxData.requestHeaders;
+                }
+            }
+            if (this._config.enableResponseHeaderTracking) {
+                var headers = xhr.getAllResponseHeaders();
+                if (headers) {
+                    // xhr.getAllResponseHeaders() method returns all the response headers, separated by CRLF, as a string or null
+                    // the regex converts the header string into an array of individual headers
+                    var arr = headers.trim().split(/[\r\n]+/);
+                    var responseHeaderMap_1 = {};
+                    arr.forEach(function (line) {
+                        var parts = line.split(': ');
+                        var header = parts.shift();
+                        var value = parts.join(': ');
+                        responseHeaderMap_1[header] = value;
+                    });
+                    if (Object.keys(responseHeaderMap_1).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.responseHeaders = {};
+                        dependency.properties.responseHeaders = responseHeaderMap_1;
+                    }
+                }
+            }
             this.trackDependencyDataInternal(dependency);
@@ -299,11 +343,5 @@ xhr.ajaxData = null;
     AjaxMonitor.prototype.createFetchRecord = function (input, init) {
-        var id;
-        if (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) {
-            // this format corresponds with activity logic on server-side and is required for the correct correlation
-            id = "|" + this._context.telemetryTrace.traceID + "." + Util.newId();
-        }
-        else {
-            id = Util.newId();
-        }
-        var ajaxData = new ajaxRecord(id, this._core.logger);
+        var traceID = (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) || Util.generateW3CId();
+        var spanID = Util.generateW3CId().substr(0, 16);
+        var ajaxData = new ajaxRecord(traceID, spanID, this._core.logger);
         ajaxData.requestSentTime = DateTimeUtils.Now();
@@ -325,2 +363,8 @@ if (input instanceof Request) {
         }
+        if (init && init.headers && this._config.enableRequestHeaderTracking) {
+            ajaxData.requestHeaders = init.headers;
+        }
+        else {
+            ajaxData.requestHeaders = {};
+        }
         return ajaxData;
@@ -338,7 +382,23 @@ };
                 init.headers = new Headers(init.headers || (input instanceof Request ? (input.headers || {}) : {}));
-                init.headers.set(RequestHeaders.requestIdHeader, ajaxData.id);
+                if (this._isUsingAIHeaders) {
+                    var id = "|" + ajaxData.traceID + "." + ajaxData.spanID;
+                    init.headers.set(RequestHeaders.requestIdHeader, id);
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.requestIdHeader] = id;
+                    }
+                }
                 var appId_1 = this._config.appId || this._context.appId();
                 if (appId_1) {
                     init.headers.set(RequestHeaders.requestContextHeader, RequestHeaders.requestContextAppIdFormat + appId_1);
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.requestContextHeader] = RequestHeaders.requestContextAppIdFormat + appId_1;
+                    }
                 }
+                if (this._isUsingW3CHeaders) {
+                    var traceparent = new Traceparent(ajaxData.traceID, ajaxData.spanID);
+                    init.headers.set(RequestHeaders.traceParentHeader, traceparent.toString());
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.traceParentHeader] = traceparent.toString();
+                    }
+                }
                 return init;
@@ -350,7 +410,23 @@ }
             if (this.currentWindowHost && CorrelationIdHelper.canIncludeCorrelationHeader(this._config, xhr.ajaxData.getAbsoluteUrl(), this.currentWindowHost)) {
-                xhr.setRequestHeader(RequestHeaders.requestIdHeader, xhr.ajaxData.id);
+                if (this._isUsingAIHeaders) {
+                    var id = "|" + xhr.ajaxData.traceID + "." + xhr.ajaxData.spanID;
+                    xhr.setRequestHeader(RequestHeaders.requestIdHeader, id);
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.requestIdHeader] = id;
+                    }
+                }
                 var appId = this._config.appId || this._context.appId();
                 if (appId) {
                     xhr.setRequestHeader(RequestHeaders.requestContextHeader, RequestHeaders.requestContextAppIdFormat + appId);
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.requestContextHeader] = RequestHeaders.requestContextAppIdFormat + appId;
+                    }
                 }
+                if (this._isUsingW3CHeaders) {
+                    var traceparent = new Traceparent(xhr.ajaxData.traceID, xhr.ajaxData.spanID);
+                    xhr.setRequestHeader(RequestHeaders.traceParentHeader, traceparent.toString());
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.traceParentHeader] = traceparent.toString();
+                    }
+                }
             }
@@ -394,3 +470,3 @@ return xhr;
                 var dependency = {
-                    id: ajaxData.id,
+                    id: "|" + ajaxData.traceID + "." + ajaxData.spanID,
                     target: ajaxData.getAbsoluteUrl(),
@@ -409,2 +485,18 @@ name: ajaxData.getPathName(),
                 }
+                if (this._config.enableRequestHeaderTracking) {
+                    if (Object.keys(ajaxData.requestHeaders).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.requestHeaders = ajaxData.requestHeaders;
+                    }
+                }
+                if (this._config.enableResponseHeaderTracking) {
+                    var responseHeaderMap_2 = {};
+                    response.headers.forEach(function (value, name) {
+                        responseHeaderMap_2[name] = value;
+                    });
+                    if (Object.keys(responseHeaderMap_2).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.responseHeaders = responseHeaderMap_2;
+                    }
+                }
                 this.trackDependencyDataInternal(dependency);
@@ -436,3 +528,3 @@ }
                 var dependency = {
-                    id: ajaxData.id,
+                    id: "|" + ajaxData.traceID + "." + ajaxData.spanID,
                     target: ajaxData.getAbsoluteUrl(),
@@ -473,2 +565,3 @@ name: ajaxData.getPathName(),
             this.instrumentAbort();
+            this.instrumentSetRequestHeader();
             this.initialized = true;
@@ -483,2 +576,3 @@ }
             disableCorrelationHeaders: false,
+            distributedTracingMode: DistributedTracingModes.AI,
             correlationHeaderExcludedDomains: [
@@ -492,3 +586,5 @@ "*.blob.core.windows.net",
             appId: undefined,
-            enableCorsCorrelation: false
+            enableCorsCorrelation: false,
+            enableRequestHeaderTracking: false,
+            enableResponseHeaderTracking: false
         };
@@ -503,2 +599,3 @@ return config;
             disableCorrelationHeaders: undefined,
+            distributedTracingMode: undefined,
             correlationHeaderExcludedDomains: undefined,
@@ -508,2 +605,4 @@ appId: undefined,
             correlationHeaderDomains: undefined,
+            enableRequestHeaderTracking: undefined,
+            enableResponseHeaderTracking: undefined
         };
@@ -519,2 +618,4 @@ };
             }
+            this._isUsingAIHeaders = this._config.distributedTracingMode === DistributedTracingModes.AI || this._config.distributedTracingMode === DistributedTracingModes.AI_AND_W3C;
+            this._isUsingW3CHeaders = this._config.distributedTracingMode === DistributedTracingModes.AI_AND_W3C || this._config.distributedTracingMode === DistributedTracingModes.W3C;
             if (this._config.disableAjaxTracking === false) {
@@ -521,0 +622,0 @@ this.instrumentXhr();

dist-esm/ajaxRecord.js

@@ -17,5 +17,6 @@ // Copyright (c) Microsoft Corporation. All rights reserved.
 var ajaxRecord = /** @class */ (function () {
-    function ajaxRecord(id, logger) {
+    function ajaxRecord(traceID, spanID, logger) {
         this.completed = false;
         this.requestHeadersSize = null;
+        this.requestHeaders = null;
         this.ttfb = null;
@@ -52,3 +53,4 @@ this.responseReceivingDuration = null;
         };
-        this.id = id;
+        this.traceID = traceID;
+        this.spanID = spanID;
         this._logger = logger;
@@ -55,0 +57,0 @@ }

dist/applicationinsights-dependencies-js.min.js

 /*!
- * Application Insights JavaScript SDK - Dependencies Plugin, 2.1.1
+ * Application Insights JavaScript SDK - Dependencies Plugin, 2.2.0
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t((e.Microsoft=e.Microsoft||{},e.Microsoft.ApplicationInsights={}))}(this,function(e){"use strict";var a,t,h,n;(t=a||(a={}))[t.LocalStorage=0]="LocalStorage",t[t.SessionStorage=1]="SessionStorage",(n=h||(h={}))[n.Default=0]="Default",n[n.Required=1]="Required",n[n.Array=2]="Array",n[n.Hidden=4]="Hidden";var c=(r.isNullOrUndefined=function(e){return null==e},r.disableCookies=function(){r._canUseCookies=!1},r.newGuid=function(){return"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(s,function(e){var t=16*Math.random()|0;return("x"===e?t:3&t|8).toString(16)})},r);function r(){}var i,o,s=/[xy]/g;(o=i||(i={}))[o.CRITICAL=1]="CRITICAL",o[o.WARNING=2]="WARNING";var l=1,u=2,d=3,p=4,f=5,g=6,m=13,v=14,x=15,y=16,D=17,S=18,I=49,C=52,N=55,w=56,A=57,_=61,M=66,b=68,T=69;j.prototype.processTelemetry=function(t){this.channelQueue.forEach(function(e){0<e.length&&e[0].processTelemetry(t)})},Object.defineProperty(j.prototype,"ChannelControls",{get:function(){return this.channelQueue},enumerable:!0,configurable:!0}),j.prototype.initialize=function(n,r,a){var i=this;if(n.isCookieUseDisabled&&c.disableCookies(),this.channelQueue=new Array,n.channels){var o=void 0;n.channels.forEach(function(e){if(e&&0<e.length){if((e=e.sort(function(e,t){return e.priority-t.priority})).forEach(function(e){e.priority<500&&(o=e.identifier),e.initialize(n,r,a)}),o)throw Error("Channel has invalid priority"+o);for(var t=1;t<e.length;t++)e[t-1].setNextPlugin(e[t]);i.channelQueue.push(e)}})}for(var e=new Array,t=0;t<a.length;t++){var s=a[t];500<s.priority&&e.push(s)}if(0<e.length){for((e=e.sort(function(e,t){return e.priority-t.priority})).forEach(function(e){return e.initialize(n,r,a)}),t=1;t<e.length;t++)e[t-1].setNextPlugin(e[t]);this.channelQueue.push(e)}};function j(){this.identifier="ChannelControllerPlugin",this.priority=500}var R=(E.requestContextHeader="Request-Context",E.requestContextTargetKey="appId",E.requestContextAppIdFormat="appId=cid-v1:",E.requestIdHeader="Request-Id",E.sdkContextHeader="Sdk-Context",E.sdkContextHeaderAppIdRequest="appId",E.requestContextHeaderLowerCase="request-context",E);function E(){}var U=(q.sanitizeKeyAndAddUniqueness=function(e,t,n){var r=t.length,a=q.sanitizeKey(e,t);if(a.length!==r){for(var i=0,o=a;void 0!==n[o];)i++,o=a.substring(0,q.MAX_NAME_LENGTH-3)+q.padNumber(i);a=o}return a},q.sanitizeKey=function(e,t){var n;return t&&(t=q.trim(t.toString())).length>q.MAX_NAME_LENGTH&&(n=t.substring(0,q.MAX_NAME_LENGTH),e.throwInternal(i.WARNING,A,"name is too long.  It has been truncated to "+q.MAX_NAME_LENGTH+" characters.",{name:t},!0)),n||t},q.sanitizeString=function(e,t,n){var r;return void 0===n&&(n=q.MAX_STRING_LENGTH),t&&(n=n||q.MAX_STRING_LENGTH,(t=q.trim(t)).toString().length>n&&(r=t.toString().substring(0,n),e.throwInternal(i.WARNING,_,"string value is too long. It has been truncated to "+n+" characters.",{value:t},!0))),r||t},q.sanitizeUrl=function(e,t){return q.sanitizeInput(e,t,q.MAX_URL_LENGTH,M)},q.sanitizeMessage=function(e,t){var n;return t&&t.length>q.MAX_MESSAGE_LENGTH&&(n=t.substring(0,q.MAX_MESSAGE_LENGTH),e.throwInternal(i.WARNING,w,"message is too long, it has been truncated to "+q.MAX_MESSAGE_LENGTH+" characters.",{message:t},!0)),n||t},q.sanitizeException=function(e,t){var n;return t&&t.length>q.MAX_EXCEPTION_LENGTH&&(n=t.substring(0,q.MAX_EXCEPTION_LENGTH),e.throwInternal(i.WARNING,C,"exception is too long, it has been truncated to "+q.MAX_EXCEPTION_LENGTH+" characters.",{exception:t},!0)),n||t},q.sanitizeProperties=function(t,e){if(e){var n={};for(var r in e){var a=e[r];if("object"==typeof a&&"undefined"!=typeof JSON)try{a=JSON.stringify(a)}catch(e){t.throwInternal(i.WARNING,I,"custom property is not valid",{exception:e},!0)}a=q.sanitizeString(t,a,q.MAX_PROPERTY_LENGTH),n[r=q.sanitizeKeyAndAddUniqueness(t,r,n)]=a}e=n}return e},q.sanitizeMeasurements=function(e,t){if(t){var n={};for(var r in t){var a=t[r];n[r=q.sanitizeKeyAndAddUniqueness(e,r,n)]=a}t=n}return t},q.sanitizeId=function(e,t){return t?q.sanitizeInput(e,t,q.MAX_ID_LENGTH,T).toString():t},q.sanitizeInput=function(e,t,n,r){var a;return t&&(t=q.trim(t)).length>n&&(a=t.substring(0,n),e.throwInternal(i.WARNING,r,"input is too long, it has been truncated to "+n+" characters.",{data:t},!0)),a||t},q.padNumber=function(e){var t="00"+e;return t.substr(t.length-3)},q.trim=function(e){return"string"!=typeof e?e:e.replace(/^\s+|\s+$/g,"")},q.MAX_NAME_LENGTH=150,q.MAX_ID_LENGTH=128,q.MAX_PROPERTY_LENGTH=8192,q.MAX_STRING_LENGTH=1024,q.MAX_URL_LENGTH=2048,q.MAX_MESSAGE_LENGTH=32768,q.MAX_EXCEPTION_LENGTH=32768,q);function q(){}var L=(k.disableStorage=function(){k._canUseLocalStorage=!1,k._canUseSessionStorage=!1},k._getLocalStorageObject=function(){return k.canUseLocalStorage()?k._getVerifiedStorageObject(a.LocalStorage):null},k._getVerifiedStorageObject=function(e){var t,n,r=null;try{if("undefined"==typeof window)return null;n=new Date,(r=e===a.LocalStorage?window.localStorage:window.sessionStorage).setItem(n,n),t=r.getItem(n)!=n,r.removeItem(n),t&&(r=null)}catch(e){r=null}return r},k.isInternalApplicationInsightsEndpoint=function(e){return-1!==k._internalEndpoints.indexOf(e.toLowerCase())},k.canUseLocalStorage=function(){return void 0===k._canUseLocalStorage&&(k._canUseLocalStorage=!!k._getVerifiedStorageObject(a.LocalStorage)),k._canUseLocalStorage},k.getStorage=function(t,e){var n=k._getLocalStorageObject();if(null!==n)try{return n.getItem(e)}catch(e){k._canUseLocalStorage=!1,t.throwInternal(i.WARNING,l,"Browser failed read of local storage. "+k.getExceptionName(e),{exception:k.dump(e)})}return null},k.setStorage=function(t,e,n){var r=k._getLocalStorageObject();if(null!==r)try{return r.setItem(e,n),!0}catch(e){k._canUseLocalStorage=!1,t.throwInternal(i.WARNING,d,"Browser failed write to local storage. "+k.getExceptionName(e),{exception:k.dump(e)})}return!1},k.removeStorage=function(t,e){var n=k._getLocalStorageObject();if(null!==n)try{return n.removeItem(e),!0}catch(e){k._canUseLocalStorage=!1,t.throwInternal(i.WARNING,f,"Browser failed removal of local storage item. 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e=!0;return(c.isNullOrUndefined(XMLHttpRequest)||c.isNullOrUndefined(XMLHttpRequest.prototype)||c.isNullOrUndefined(XMLHttpRequest.prototype.open)||c.isNullOrUndefined(XMLHttpRequest.prototype.send)||c.isNullOrUndefined(XMLHttpRequest.prototype.abort))&&(e=!1),e},dt.prototype.instrumentOpen=function(){var r=XMLHttpRequest.prototype.open,a=this;XMLHttpRequest.prototype.open=function(e,t,n){try{!a.isMonitoredInstance(this,!0)||this.ajaxData&&this.ajaxData.xhrMonitoringState.openDone||a.openHandler(this,e,t,n)}catch(e){a._core.logger.throwInternal(i.CRITICAL,x,"Failed to monitor XMLHttpRequest.open, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(this),exception:L.dump(e)})}return r.apply(this,arguments)}},dt.prototype.openHandler=function(e,t,n,r){var a;a=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID?"|"+this._context.telemetryTrace.traceID+"."+L.newId():L.newId();var i=new ot(a,this._core.logger);i.method=t,i.requestUrl=n,i.xhrMonitoringState.openDone=!0,e.ajaxData=i,this.attachToOnReadyStateChange(e)},dt.getFailedAjaxDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||c.isNullOrUndefined(e.ajaxData)||c.isNullOrUndefined(e.ajaxData.requestUrl)||(t+="(url: '"+e.ajaxData.requestUrl+"')")}catch(e){}return t},dt.prototype.instrumentSend=function(){var t=XMLHttpRequest.prototype.send,n=this;XMLHttpRequest.prototype.send=function(e){try{n.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.sendDone&&n.sendHandler(this,e)}catch(e){n._core.logger.throwInternal(i.CRITICAL,D,"Failed to monitor XMLHttpRequest, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(this),exception:L.dump(e)})}return t.apply(this,arguments)}},dt.prototype.sendHandler=function(e,t){e.ajaxData.requestSentTime=X.Now(),(e=this.includeCorrelationHeaders(e.ajaxData,void 0,void 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t={id:e.ajaxData.id,target:e.ajaxData.getAbsoluteUrl(),name:e.ajaxData.getPathName(),type:"Ajax",duration:e.ajaxData.ajaxTotalDuration,success:200<=+e.ajaxData.status&&+e.ajaxData.status<400,responseCode:+e.ajaxData.status,method:e.ajaxData.method},n=this.getAjaxCorrelationContext(e);n&&(t.correlationContext=n),this.trackDependencyDataInternal(t),e.ajaxData=null}},dt.prototype.getAjaxCorrelationContext=function(t){try{var e=t.getAllResponseHeaders();if(null!==e&&-1!==e.toLowerCase().indexOf(R.requestContextHeaderLowerCase)){var n=t.getResponseHeader(R.requestContextHeader);return O.getCorrelationContext(n)}}catch(e){this._core.logger.throwInternal(i.WARNING,S,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{ajaxDiagnosticsMessage:dt.getFailedAjaxDiagnosticsMessage(t),exception:L.dump(e)})}},dt.prototype.trackDependencyDataInternal=function(e,t,n){if(-1===this._config.maxAjaxCallsPerView||this._trackAjaxAttempts<this._config.maxAjaxCallsPerView){var r=rt.create(e,He.dataType,He.envelopeType,this._core.logger,t,n);this._core.track(r)}else this._trackAjaxAttempts===this._config.maxAjaxCallsPerView&&this._core.logger.throwInternal(i.CRITICAL,N,"Maximum ajax per page view limit reached, ajax monitoring is paused until the next trackPageView(). In order to increase the limit set the maxAjaxCallsPerView configuration parameter.",!0);++this._trackAjaxAttempts},dt.prototype.trackDependencyData=function(e,t){this.trackDependencyDataInternal(e,t)},dt.prototype.processTelemetry=function(e){this._nextPlugin&&this._nextPlugin.processTelemetry&&this._nextPlugin.processTelemetry(e)},dt.prototype.setNextPlugin=function(e){e&&(this._nextPlugin=e)},dt.prototype.instrumentFetch=function(){if(this.supportsFetch()&&!this._fetchInitialized){var r=window.fetch,a=this;window.fetch=function(t,e){var n;if(a.isFetchInstrumented(t)&&a.isMonitoredInstance(void 0,void 0,t,e))try{n=a.createFetchRecord(t,e),e=a.includeCorrelationHeaders(n,t,e)}catch(e){a._core.logger.throwInternal(i.CRITICAL,x,"Failed to monitor Window.fetch, monitoring data for this fetch call may be incorrect.",{ajaxDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:L.dump(e)})}return r(t,e).then(function(e){return a.onFetchComplete(e,n),e}).catch(function(e){throw 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this.requestUrl?k.sanitizeUrl(this._logger,z.getCompleteUrl(this.method,this.requestUrl)):null},lt);function lt(e,t,n){this.completed=!1,this.requestHeadersSize=null,this.requestHeaders=null,this.ttfb=null,this.responseReceivingDuration=null,this.callbackDuration=null,this.ajaxTotalDuration=null,this.aborted=null,this.pageUrl=null,this.requestUrl=null,this.requestSize=0,this.method=null,this.status=null,this.requestSentTime=null,this.responseStartedTime=null,this.responseFinishedTime=null,this.callbackFinishedTime=null,this.endTime=null,this.originalOnreadystatechage=null,this.xhrMonitoringState=new ct,this.clientFailure=0,this.CalculateMetrics=function(){this.ajaxTotalDuration=Math.round(1e3*B.GetDuration(this.requestSentTime,this.responseFinishedTime))/1e3},this.traceID=e,this.spanID=t,this._logger=n}var dt=(pt.AttachEvent=function(e,t,n){var r=!1;return c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.attachEvent)?c.isNullOrUndefined(e.addEventListener)||(e.addEventListener(t,n,!1),r=!0):(e.attachEvent("on"+t,n),r=!0)),r},pt.DetachEvent=function(e,t,n){c.isNullOrUndefined(e)||(c.isNullOrUndefined(e.detachEvent)?c.isNullOrUndefined(e.removeEventListener)||e.removeEventListener(t,n,!1):e.detachEvent("on"+t,n))},pt);function pt(){}var ht=(ft.isValidTraceId=function(e){return e.match(/^[0-9a-f]{32}$/)&&"00000000000000000000000000000000"!==e},ft.isValidSpanId=function(e){return e.match(/^[0-9a-f]{16}$/)&&"0000000000000000"!==e},ft.prototype.toString=function(){return this.version+"-"+this.traceId+"-"+this.spanId+"-"+this.traceFlag},ft.DEFAULT_TRACE_FLAG="00",ft.DEFAULT_VERSION="00",ft);function ft(e,t){this.traceFlag=ft.DEFAULT_TRACE_FLAG,this.version=ft.DEFAULT_VERSION,e&&ft.isValidTraceId(e)?this.traceId=e:this.traceId=F.generateW3CId(),t&&ft.isValidSpanId(t)?this.spanId=t:this.spanId=F.generateW3CId().substr(0,16)}var gt=(mt.prototype.isMonitoredInstance=function(e,t,n,r){var a=!1,i=!0,o=!1;return void 0!==n?(o=this._fetchInitialized,a="object"==typeof n&&!0===n[Q]||!!r&&!0===r[Q]):void 0!==e&&(o=this.initialized,a=!0===e[Q],i=!0===t||!c.isNullOrUndefined(e.ajaxData)),o&&i&&!a},mt.prototype.supportsAjaxMonitoring=function(){var e=!0;return(c.isNullOrUndefined(XMLHttpRequest)||c.isNullOrUndefined(XMLHttpRequest.prototype)||c.isNullOrUndefined(XMLHttpRequest.prototype.open)||c.isNullOrUndefined(XMLHttpRequest.prototype.send)||c.isNullOrUndefined(XMLHttpRequest.prototype.abort))&&(e=!1),e},mt.prototype.instrumentOpen=function(){var r=XMLHttpRequest.prototype.open,a=this;XMLHttpRequest.prototype.open=function(e,t,n){try{!a.isMonitoredInstance(this,!0)||this.ajaxData&&this.ajaxData.xhrMonitoringState.openDone||a.openHandler(this,e,t,n)}catch(e){a._core.logger.throwInternal(o.CRITICAL,I,"Failed to monitor XMLHttpRequest.open, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return r.apply(this,arguments)}},mt.prototype.openHandler=function(e,t,n,r){var a=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID||F.generateW3CId(),i=F.generateW3CId().substr(0,16),o=new ut(a,i,this._core.logger);o.method=t,o.requestUrl=n,o.xhrMonitoringState.openDone=!0,o.requestHeaders={},e.ajaxData=o,this.attachToOnReadyStateChange(e)},mt.getFailedAjaxDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||c.isNullOrUndefined(e.ajaxData)||c.isNullOrUndefined(e.ajaxData.requestUrl)||(t+="(url: '"+e.ajaxData.requestUrl+"')")}catch(e){}return t},mt.prototype.instrumentSend=function(){var t=XMLHttpRequest.prototype.send,n=this;XMLHttpRequest.prototype.send=function(e){try{n.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.sendDone&&n.sendHandler(this,e)}catch(e){n._core.logger.throwInternal(o.CRITICAL,S,"Failed to monitor XMLHttpRequest, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return t.apply(this,arguments)}},mt.prototype.sendHandler=function(e,t){e.ajaxData.requestSentTime=B.Now(),(e=this.includeCorrelationHeaders(e.ajaxData,void 0,void 0,e)).ajaxData.xhrMonitoringState.sendDone=!0},mt.prototype.instrumentAbort=function(){var e=XMLHttpRequest.prototype.abort,t=this;XMLHttpRequest.prototype.abort=function(){try{t.isMonitoredInstance(this)&&!this.ajaxData.xhrMonitoringState.abortDone&&(this.ajaxData.aborted=1,this.ajaxData.xhrMonitoringState.abortDone=!0)}catch(e){t._core.logger.throwInternal(o.CRITICAL,x,"Failed to monitor XMLHttpRequest.abort, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return e.apply(this,arguments)}},mt.prototype.instrumentSetRequestHeader=function(){if(this._config.enableRequestHeaderTracking){var n=XMLHttpRequest.prototype.setRequestHeader,r=this;XMLHttpRequest.prototype.setRequestHeader=function(e,t){try{r.isMonitoredInstance(this)&&(this.ajaxData.requestHeaders[e]=t)}catch(e){r._core.logger.throwInternal(o.CRITICAL,q,"Failed to monitor XMLHttpRequest.setRequestHeader, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(this),exception:F.dump(e)})}return n.apply(this,arguments)}}},mt.prototype.attachToOnReadyStateChange=function(n){var r=this;n.ajaxData.xhrMonitoringState.onreadystatechangeCallbackAttached=dt.AttachEvent(n,"readystatechange",function(){try{r.isMonitoredInstance(n)&&4===n.readyState&&r.onAjaxComplete(n)}catch(e){var t=F.dump(e);t&&-1!=t.toLowerCase().indexOf("c00c023f")||r._core.logger.throwInternal(o.CRITICAL,D,"Failed to monitor XMLHttpRequest 'readystatechange' event handler, monitoring data for this ajax call may be incorrect.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(n),exception:F.dump(e)})}})},mt.prototype.onAjaxComplete=function(e){if(e.ajaxData.responseFinishedTime=B.Now(),e.ajaxData.status=e.status,e.ajaxData.CalculateMetrics(),e.ajaxData.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the ajax call, monitoring data for this ajax call won't be sent.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(e),requestSentTime:e.ajaxData.requestSentTime,responseFinishedTime:e.ajaxData.responseFinishedTime});else{var t={id:"|"+e.ajaxData.traceID+"."+e.ajaxData.spanID,target:e.ajaxData.getAbsoluteUrl(),name:e.ajaxData.getPathName(),type:"Ajax",duration:e.ajaxData.ajaxTotalDuration,success:200<=+e.ajaxData.status&&+e.ajaxData.status<400,responseCode:+e.ajaxData.status,method:e.ajaxData.method},n=this.getAjaxCorrelationContext(e);if(n&&(t.correlationContext=n),this._config.enableRequestHeaderTracking&&0<Object.keys(e.ajaxData.requestHeaders).length&&(t.properties=t.properties||{},t.properties.requestHeaders={},t.properties.requestHeaders=e.ajaxData.requestHeaders),this._config.enableResponseHeaderTracking){var r=e.getAllResponseHeaders();if(r){var a=r.trim().split(/[\r\n]+/),i={};a.forEach(function(e){var t=e.split(": "),n=t.shift(),r=t.join(": ");i[n]=r}),0<Object.keys(i).length&&(t.properties=t.properties||{},t.properties.responseHeaders={},t.properties.responseHeaders=i)}}this.trackDependencyDataInternal(t),e.ajaxData=null}},mt.prototype.getAjaxCorrelationContext=function(t){try{var e=t.getAllResponseHeaders();if(null!==e&&-1!==e.toLowerCase().indexOf(E.requestContextHeaderLowerCase)){var n=t.getResponseHeader(E.requestContextHeader);return G.getCorrelationContext(n)}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{ajaxDiagnosticsMessage:mt.getFailedAjaxDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.trackDependencyDataInternal=function(e,t,n){if(-1===this._config.maxAjaxCallsPerView||this._trackAjaxAttempts<this._config.maxAjaxCallsPerView){var r=ot.create(e,Pe.dataType,Pe.envelopeType,this._core.logger,t,n);this._core.track(r)}else this._trackAjaxAttempts===this._config.maxAjaxCallsPerView&&this._core.logger.throwInternal(o.CRITICAL,N,"Maximum ajax per page view limit reached, ajax monitoring is paused until the next trackPageView(). In order to increase the limit set the maxAjaxCallsPerView configuration parameter.",!0);++this._trackAjaxAttempts},mt.prototype.trackDependencyData=function(e,t){this.trackDependencyDataInternal(e,t)},mt.prototype.processTelemetry=function(e){this._nextPlugin&&this._nextPlugin.processTelemetry&&this._nextPlugin.processTelemetry(e)},mt.prototype.setNextPlugin=function(e){e&&(this._nextPlugin=e)},mt.prototype.instrumentFetch=function(){if(this.supportsFetch()&&!this._fetchInitialized){var r=window.fetch,a=this;window.fetch=function(t,e){var n;if(a.isFetchInstrumented(t)&&a.isMonitoredInstance(void 0,void 0,t,e))try{n=a.createFetchRecord(t,e),e=a.includeCorrelationHeaders(n,t,e)}catch(e){a._core.logger.throwInternal(o.CRITICAL,I,"Failed to monitor Window.fetch, monitoring data for this fetch call may be incorrect.",{ajaxDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}return r(t,e).then(function(e){return a.onFetchComplete(e,n),e}).catch(function(e){throw a.onFetchFailed(t,n,e),e})},this._fetchInitialized=!0}},mt.prototype.isFetchInstrumented=function(e){return this._fetchInitialized&&!0!==e[Q]},mt.prototype.supportsFetch=function(){var e=!0;return(!window||c.isNullOrUndefined(window.Request)||c.isNullOrUndefined(window.Request.prototype)||c.isNullOrUndefined(window.fetch))&&(e=!1),e},mt.prototype.createFetchRecord=function(e,t){var n=this._context&&this._context.telemetryTrace&&this._context.telemetryTrace.traceID||F.generateW3CId(),r=F.generateW3CId().substr(0,16),a=new ut(n,r,this._core.logger);return a.requestSentTime=B.Now(),e instanceof Request?a.requestUrl=e?e.url:"":a.requestUrl=e,t&&t.method?a.method=t.method:e&&e instanceof Request?a.method=e.method:a.method="GET",t&&t.headers&&this._config.enableRequestHeaderTracking?a.requestHeaders=t.headers:a.requestHeaders={},a},mt.prototype.includeCorrelationHeaders=function(e,t,n,r){if(t){if(G.canIncludeCorrelationHeader(this._config,e.getAbsoluteUrl(),this.currentWindowHost)){if((n=n||{}).headers=new Headers(n.headers||t instanceof Request&&t.headers||{}),this._isUsingAIHeaders){var a="|"+e.traceID+"."+e.spanID;n.headers.set(E.requestIdHeader,a),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.requestIdHeader]=a)}var i=this._config.appId||this._context.appId();if(i&&(n.headers.set(E.requestContextHeader,E.requestContextAppIdFormat+i),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.requestContextHeader]=E.requestContextAppIdFormat+i)),this._isUsingW3CHeaders){var o=new ht(e.traceID,e.spanID);n.headers.set(E.traceParentHeader,o.toString()),this._config.enableRequestHeaderTracking&&(e.requestHeaders[E.traceParentHeader]=o.toString())}return n}return n}if(r){if(this.currentWindowHost&&G.canIncludeCorrelationHeader(this._config,r.ajaxData.getAbsoluteUrl(),this.currentWindowHost)){this._isUsingAIHeaders&&(a="|"+r.ajaxData.traceID+"."+r.ajaxData.spanID,r.setRequestHeader(E.requestIdHeader,a),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.requestIdHeader]=a));var s=this._config.appId||this._context.appId();s&&(r.setRequestHeader(E.requestContextHeader,E.requestContextAppIdFormat+s),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.requestContextHeader]=E.requestContextAppIdFormat+s)),this._isUsingW3CHeaders&&(o=new ht(r.ajaxData.traceID,r.ajaxData.spanID),r.setRequestHeader(E.traceParentHeader,o.toString()),this._config.enableRequestHeaderTracking&&(r.ajaxData.requestHeaders[E.traceParentHeader]=o.toString()))}return r}},mt.prototype.getFailedFetchDiagnosticsMessage=function(e){var t="";try{c.isNullOrUndefined(e)||(t+="string"==typeof e?"(url: '"+e+"')":"(url: '"+e.url+"')")}catch(e){this._core.logger.throwInternal(o.CRITICAL,I,"Failed to grab failed fetch diagnostics message",{exception:F.dump(e)})}return t},mt.prototype.onFetchComplete=function(t,e){if(e)try{if(e.responseFinishedTime=B.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var n={id:"|"+e.traceID+"."+e.spanID,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:200<=t.status&&t.status<400,responseCode:t.status,properties:{HttpMethod:e.method}},r=this.getFetchCorrelationContext(t);if(r&&(n.correlationContext=r),this._config.enableRequestHeaderTracking&&0<Object.keys(e.requestHeaders).length&&(n.properties=n.properties||{},n.properties.requestHeaders=e.requestHeaders),this._config.enableResponseHeaderTracking){var a={};t.headers.forEach(function(e,t){a[t]=e}),0<Object.keys(a).length&&(n.properties=n.properties||{},n.properties.responseHeaders=a)}this.trackDependencyDataInternal(n)}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to calculate the duration of the fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.onFetchFailed=function(t,e,n){if(e)try{if(e.responseFinishedTime=B.Now(),e.CalculateMetrics(),e.ajaxTotalDuration<0)this._core.logger.throwInternal(o.WARNING,y,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),requestSentTime:e.requestSentTime,responseFinishedTime:e.responseFinishedTime});else{var r={id:"|"+e.traceID+"."+e.spanID,target:e.getAbsoluteUrl(),name:e.getPathName(),type:"Fetch",duration:e.ajaxTotalDuration,success:!1,responseCode:0,properties:{HttpMethod:e.method}};this.trackDependencyDataInternal(r,{error:n.message})}}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to calculate the duration of the failed fetch call, monitoring data for this fetch call won't be sent.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.getFetchCorrelationContext=function(t){try{var e=t.headers.get(E.requestContextHeader);return G.getCorrelationContext(e)}catch(e){this._core.logger.throwInternal(o.WARNING,C,"Failed to get Request-Context correlation header as it may be not included in the response or not accessible.",{fetchDiagnosticsMessage:this.getFailedFetchDiagnosticsMessage(t),exception:F.dump(e)})}},mt.prototype.instrumentXhr=function(){this.supportsAjaxMonitoring()&&!this.initialized&&(this.instrumentOpen(),this.instrumentSend(),this.instrumentAbort(),this.instrumentSetRequestHeader(),this.initialized=!0)},mt.getDefaultConfig=function(){return{maxAjaxCallsPerView:500,disableAjaxTracking:!1,disableFetchTracking:!0,disableCorrelationHeaders:!1,distributedTracingMode:s.AI,correlationHeaderExcludedDomains:["*.blob.core.windows.net","*.blob.core.chinacloudapi.cn","*.blob.core.cloudapi.de","*.blob.core.usgovcloudapi.net"],correlationHeaderDomains:void 0,appId:void 0,enableCorsCorrelation:!1,enableRequestHeaderTracking:!1,enableResponseHeaderTracking:!1}},mt.getEmptyConfig=function(){return{maxAjaxCallsPerView:void 0,disableAjaxTracking:void 0,disableFetchTracking:void 0,disableCorrelationHeaders:void 0,distributedTracingMode:void 0,correlationHeaderExcludedDomains:void 0,appId:void 0,enableCorsCorrelation:void 0,correlationHeaderDomains:void 0,enableRequestHeaderTracking:void 0,enableResponseHeaderTracking:void 0}},mt.prototype.initialize=function(e,t,n){if(!this.initialized&&!this._fetchInitialized){this._core=t;var r=mt.getDefaultConfig();for(var a in this._config=mt.getEmptyConfig(),r)this._config[a]=at.getConfig(e,a,mt.identifier,r[a]);if(this._isUsingAIHeaders=this._config.distributedTracingMode===s.AI||this._config.distributedTracingMode===s.AI_AND_W3C,this._isUsingW3CHeaders=this._config.distributedTracingMode===s.AI_AND_W3C||this._config.distributedTracingMode===s.W3C,!1===this._config.disableAjaxTracking&&this.instrumentXhr(),!1===this._config.disableFetchTracking&&this.instrumentFetch(),0<n.length&&n){for(var i=void 0,o=0;!i&&o<n.length;)n[o]&&"AppInsightsPropertiesPlugin"===n[o].identifier&&(i=n[o]),o++;i&&(this._context=i.context)}}},mt.identifier="AjaxDependencyPlugin",mt);function mt(){this._trackAjaxAttempts=0,this.identifier=mt.identifier,this.priority=120,this.currentWindowHost=window&&window.location&&window.location.host&&window.location.host.toLowerCase(),this.initialized=!1,this._fetchInitialized=!1}e.AjaxPlugin=gt,e.ajaxRecord=ut,Object.defineProperty(e,"__esModule",{value:!0})});
 //# sourceMappingURL=applicationinsights-dependencies-js.min.js.map

package.json

 {
     "name": "@microsoft/applicationinsights-dependencies-js",
-    "version": "2.1.1",
+    "version": "2.2.0",
     "description": "Microsoft Application Insights XHR dependencies plugin",
@@ -31,4 +31,4 @@ "main": "dist/applicationinsights-dependencies-js.js",
     "dependencies": {
-        "@microsoft/applicationinsights-core-js": "2.1.1",
-        "@microsoft/applicationinsights-common": "2.1.1",
+        "@microsoft/applicationinsights-core-js": "2.2.0",
+        "@microsoft/applicationinsights-common": "2.2.0",
         "tslib": "^1.9.3"
@@ -35,0 +35,0 @@ },

src/ajax.ts

@@ -7,3 +7,3 @@ // Copyright (c) Microsoft Corporation. All rights reserved.
     RemoteDependencyData, DateTimeUtils, DisabledPropertyName, Data, IDependencyTelemetry,
-    IConfig, ConfigurationManager, ITelemetryContext, PropertiesPluginIdentifier, IPropertiesPlugin
+    IConfig, ConfigurationManager, ITelemetryContext, PropertiesPluginIdentifier, IPropertiesPlugin, DistributedTracingModes
 } from '@microsoft/applicationinsights-common';
@@ -16,3 +16,5 @@ import {
 import { EventHelper } from './ajaxUtils';
+import { Traceparent } from './TraceParent';
 
+
 export interface XMLHttpRequestInstrumented extends XMLHttpRequest {
@@ -39,2 +41,4 @@ ajaxData: ajaxRecord;
     private _context: ITelemetryContext;
+    private _isUsingW3CHeaders: boolean;
+    private _isUsingAIHeaders: boolean;
 
@@ -127,15 +131,10 @@ constructor() {
     private openHandler(xhr: XMLHttpRequestInstrumented, method, url, async) {
-        let id: string;
-        if (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) {
+        var traceID = (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) || Util.generateW3CId();
+        var spanID = Util.generateW3CId().substr(0, 16);
 
-            // this format corresponds with activity logic on server-side and is required for the correct correlation
-            id = "|" + this._context.telemetryTrace.traceID + "." + Util.newId();
-        } else {
-            id = Util.newId();
-        }
-
-        var ajaxData = new ajaxRecord(id, this._core.logger);
+        var ajaxData = new ajaxRecord(traceID, spanID, this._core.logger);
         ajaxData.method = method;
         ajaxData.requestUrl = url;
-        ajaxData.xhrMonitoringState.openDone = true
+        ajaxData.xhrMonitoringState.openDone = true;
+        ajaxData.requestHeaders = {};
         xhr.ajaxData = ajaxData;
@@ -212,2 +211,28 @@
 
+    private instrumentSetRequestHeader() {
+        if (!this._config.enableRequestHeaderTracking) {
+            return;
+        }
+        var originalSetRequestHeader = XMLHttpRequest.prototype.setRequestHeader;
+        var ajaxMonitorInstance = this;
+        XMLHttpRequest.prototype.setRequestHeader = function (header, value) {
+            try {
+                if (ajaxMonitorInstance.isMonitoredInstance(this)) {
+                    this.ajaxData.requestHeaders[header] = value;
+                }
+            } catch (e) {
+                ajaxMonitorInstance._core.logger.throwInternal(
+                    LoggingSeverity.CRITICAL,
+                    _InternalMessageId.FailedMonitorAjaxSetRequestHeader,
+                    "Failed to monitor XMLHttpRequest.setRequestHeader, monitoring data for this ajax call may be incorrect.",
+                    {
+                        ajaxDiagnosticsMessage: AjaxMonitor.getFailedAjaxDiagnosticsMessage(this),
+                        exception: Util.dump(e)
+                    });
+            }
+
+            return originalSetRequestHeader.apply(this, arguments);
+        }
+    }
+
     private attachToOnReadyStateChange(xhr: XMLHttpRequestInstrumented) {
@@ -255,6 +280,5 @@ var ajaxMonitorInstance = this;
                 });
-        }
-        else {
-            var dependency = <IDependencyTelemetry>{
-                id: xhr.ajaxData.id,
+        } else {
+            const dependency = <IDependencyTelemetry>{
+                id: "|" + xhr.ajaxData.traceID + "." + xhr.ajaxData.spanID,
                 target: xhr.ajaxData.getAbsoluteUrl(),
@@ -275,2 +299,31 @@ name: xhr.ajaxData.getPathName(),
 
+            if (this._config.enableRequestHeaderTracking) {
+                if (Object.keys(xhr.ajaxData.requestHeaders).length > 0) {
+                    dependency.properties = dependency.properties || {};
+                    dependency.properties.requestHeaders = {};
+                    dependency.properties.requestHeaders = xhr.ajaxData.requestHeaders;
+                }
+            }
+
+            if (this._config.enableResponseHeaderTracking) { 
+                var headers = xhr.getAllResponseHeaders();
+                if (headers) {
+                    // xhr.getAllResponseHeaders() method returns all the response headers, separated by CRLF, as a string or null
+                    // the regex converts the header string into an array of individual headers
+                    var arr = headers.trim().split(/[\r\n]+/);
+                    const responseHeaderMap = {};
+                    arr.forEach(function (line) {
+                        var parts = line.split(': ');
+                        var header = parts.shift();
+                        var value = parts.join(': ');
+                        responseHeaderMap[header] = value;
+                    });
+                    if (Object.keys(responseHeaderMap).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.responseHeaders = {};
+                        dependency.properties.responseHeaders = responseHeaderMap;
+                    }
+                }
+            }
+            
             this.trackDependencyDataInternal(dependency);
@@ -402,11 +455,6 @@
     private createFetchRecord(input?: Request | string, init?: RequestInit): ajaxRecord {
-        let id: string;
-        if (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) {
+        var traceID = (this._context && this._context.telemetryTrace && this._context.telemetryTrace.traceID) || Util.generateW3CId();
+        var spanID = Util.generateW3CId().substr(0, 16);
 
-            // this format corresponds with activity logic on server-side and is required for the correct correlation
-            id = "|" + this._context.telemetryTrace.traceID + "." + Util.newId();
-        } else {
-            id = Util.newId();
-        }
-        let ajaxData: ajaxRecord = new ajaxRecord(id, this._core.logger);
+        var ajaxData = new ajaxRecord(traceID, spanID, this._core.logger);
         ajaxData.requestSentTime = DateTimeUtils.Now();
@@ -427,2 +475,8 @@
         }
+
+        if (init && init.headers && this._config.enableRequestHeaderTracking) {
+            ajaxData.requestHeaders = init.headers;
+        } else {
+            ajaxData.requestHeaders = {};
+        }
         return ajaxData;
@@ -441,8 +495,23 @@ }
                 init.headers = new Headers(init.headers || (input instanceof Request ? (input.headers || {}) : {}));
-                init.headers.set(RequestHeaders.requestIdHeader, ajaxData.id);
+                if (this._isUsingAIHeaders) {
+                    var id = "|" + ajaxData.traceID + "." + ajaxData.spanID;
+                    init.headers.set(RequestHeaders.requestIdHeader, id);
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.requestIdHeader] = id;
+                    }
+                }
                 let appId: string = this._config.appId || this._context.appId();
                 if (appId) {
                     init.headers.set(RequestHeaders.requestContextHeader, RequestHeaders.requestContextAppIdFormat + appId);
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.requestContextHeader] = RequestHeaders.requestContextAppIdFormat + appId;
+                    }
                 }
-
+                if (this._isUsingW3CHeaders) {
+                    var traceparent = new Traceparent(ajaxData.traceID, ajaxData.spanID);
+                    init.headers.set(RequestHeaders.traceParentHeader, traceparent.toString());
+                    if (this._config.enableRequestHeaderTracking) {
+                        ajaxData.requestHeaders[RequestHeaders.traceParentHeader] = traceparent.toString();
+                    }
+                }
                 return init;
@@ -454,7 +523,23 @@ }
                 this.currentWindowHost)) {
-                xhr.setRequestHeader(RequestHeaders.requestIdHeader, xhr.ajaxData.id);
+                if (this._isUsingAIHeaders) {
+                    var id = "|" + xhr.ajaxData.traceID + "." + xhr.ajaxData.spanID;
+                    xhr.setRequestHeader(RequestHeaders.requestIdHeader, id);
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.requestIdHeader] = id;
+                    }
+                }
                 var appId = this._config.appId || this._context.appId();
                 if (appId) {
                     xhr.setRequestHeader(RequestHeaders.requestContextHeader, RequestHeaders.requestContextAppIdFormat + appId);
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.requestContextHeader] = RequestHeaders.requestContextAppIdFormat + appId;
+                    }
                 }
+                if (this._isUsingW3CHeaders) {
+                    var traceparent = new Traceparent(xhr.ajaxData.traceID, xhr.ajaxData.spanID);
+                    xhr.setRequestHeader(RequestHeaders.traceParentHeader, traceparent.toString());
+                    if (this._config.enableRequestHeaderTracking) {
+                        xhr.ajaxData.requestHeaders[RequestHeaders.traceParentHeader] = traceparent.toString();
+                    }
+                }
             }
@@ -507,4 +592,4 @@
             } else {
-                let dependency: IDependencyTelemetry = {
-                    id: ajaxData.id,
+                const dependency: IDependencyTelemetry = {
+                    id: "|" + ajaxData.traceID + "." + ajaxData.spanID,
                     target: ajaxData.getAbsoluteUrl(),
@@ -525,2 +610,19 @@ name: ajaxData.getPathName(),
 
+                if (this._config.enableRequestHeaderTracking) {
+                    if (Object.keys(ajaxData.requestHeaders).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.requestHeaders = ajaxData.requestHeaders;
+                    }               
+                }
+
+                if (this._config.enableResponseHeaderTracking) {          
+                    const responseHeaderMap = {};
+                    response.headers.forEach((value, name) => {
+                        responseHeaderMap[name] = value;
+                    });
+                    if (Object.keys(responseHeaderMap).length > 0) {
+                        dependency.properties = dependency.properties || {};
+                        dependency.properties.responseHeaders = responseHeaderMap;
+                    }
+                }
                 this.trackDependencyDataInternal(dependency);
@@ -561,3 +663,3 @@ }
                 let dependency: IDependencyTelemetry = {
-                    id: ajaxData.id,
+                    id: "|" + ajaxData.traceID + "." + ajaxData.spanID,
                     target: ajaxData.getAbsoluteUrl(),
@@ -607,2 +709,3 @@ name: ajaxData.getPathName(),
             this.instrumentAbort();
+            this.instrumentSetRequestHeader();
             this.initialized = true;
@@ -618,2 +721,3 @@ }
             disableCorrelationHeaders: false,
+            distributedTracingMode: DistributedTracingModes.AI,
             correlationHeaderExcludedDomains: [
@@ -626,3 +730,5 @@ "*.blob.core.windows.net",
             appId: undefined,
-            enableCorsCorrelation: false
+            enableCorsCorrelation: false,
+            enableRequestHeaderTracking: false,
+            enableResponseHeaderTracking: false
         }
@@ -638,2 +744,3 @@ return config;
             disableCorrelationHeaders: undefined,
+            distributedTracingMode: undefined,
             correlationHeaderExcludedDomains: undefined,
@@ -643,2 +750,4 @@ appId: undefined,
             correlationHeaderDomains: undefined,
+            enableRequestHeaderTracking: undefined,
+            enableResponseHeaderTracking: undefined
         }
@@ -656,2 +765,5 @@ }
 
+            this._isUsingAIHeaders = this._config.distributedTracingMode === DistributedTracingModes.AI || this._config.distributedTracingMode === DistributedTracingModes.AI_AND_W3C;
+            this._isUsingW3CHeaders = this._config.distributedTracingMode === DistributedTracingModes.AI_AND_W3C || this._config.distributedTracingMode === DistributedTracingModes.W3C;
+
             if (this._config.disableAjaxTracking === false) {
@@ -658,0 +770,0 @@ this.instrumentXhr();

src/ajaxRecord.ts

@@ -20,2 +20,3 @@ // Copyright (c) Microsoft Corporation. All rights reserved.
     public requestHeadersSize = null;
+    public requestHeaders = null;
     public ttfb = null;
@@ -60,10 +61,11 @@ public responseReceivingDuration = null;
 
-    public id: string;
+    public traceID: string;
+    public spanID: string;
 
-    constructor(id: string, logger: IDiagnosticLogger) {
-        this.id = id;
+    constructor(traceID: string, spanID: string, logger: IDiagnosticLogger) {
+        this.traceID = traceID;
+        this.spanID = spanID;
         this._logger = logger;
     }
 
-
     public getAbsoluteUrl() {
@@ -70,0 +72,0 @@ return this.requestUrl ? UrlHelper.getAbsoluteUrl(this.requestUrl) : null;

types/ajax.d.ts

@@ -22,2 +22,4 @@ import { ICorrelationConfig, IDependencyTelemetry, IConfig } from '@microsoft/applicationinsights-common';
     private _context;
+    private _isUsingW3CHeaders;
+    private _isUsingAIHeaders;
     constructor();
@@ -32,2 +34,3 @@ private isMonitoredInstance(xhr?, excludeAjaxDataValidation?, request?, init?);
     private instrumentAbort();
+    private instrumentSetRequestHeader();
     private attachToOnReadyStateChange(xhr);
@@ -34,0 +37,0 @@ private onAjaxComplete(xhr);

types/ajaxRecord.d.ts

@@ -12,2 +12,3 @@ import { IDiagnosticLogger } from '@microsoft/applicationinsights-core-js';
     requestHeadersSize: any;
+    requestHeaders: any;
     ttfb: any;
@@ -32,4 +33,5 @@ responseReceivingDuration: any;
     clientFailure: number;
-    id: string;
-    constructor(id: string, logger: IDiagnosticLogger);
+    traceID: string;
+    spanID: string;
+    constructor(traceID: string, spanID: string, logger: IDiagnosticLogger);
     getAbsoluteUrl(): string;
@@ -36,0 +38,0 @@ getPathName(): any;

New alerts

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Found 1 instance in 1 package

Fixed alerts

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Improved metrics

Total package byte prevSize

1378585

increased by10.64%

Number of package files

32

increased by14.29%

Lines of code

7417

increased by10.52%

Dependency changes

• + Added@microsoft/applicationinsights-common@2.2.0(transitive)

• + Added@microsoft/applicationinsights-core-js@2.2.0(transitive)

• - Removed@microsoft/applicationinsights-common@2.1.1(transitive)

• - Removed@microsoft/applicationinsights-core-js@2.1.1(transitive)

• Updated@microsoft/applicationinsights-common@2.2.0

• Updated@microsoft/applicationinsights-core-js@2.2.0