@openreplay/tracker - npm Package Compare versions

Comparing version 3.5.12 to 3.5.13-beta.0

cjs/app/index.d.ts

@@ -47,2 +47,4 @@ import type Message from "../common/messages.js";
     __debug__?: LoggerOptions;
+    localStorage: Storage;
+    sessionStorage: Storage;
     onStart?: StartCallback;
@@ -60,2 +62,4 @@ } & WebworkerOptions;
     readonly session: Session;
+    readonly localStorage: Storage;
+    readonly sessionStorage: Storage;
     private readonly messages;
@@ -62,0 +66,0 @@ private readonly observer;

cjs/app/index.js

@@ -35,3 +35,3 @@ "use strict";
         this.activityState = ActivityState.NotActive;
-        this.version = '3.5.12'; // TODO: version compatability check inside each plugin.
+        this.version = '3.5.13-beta.0'; // TODO: version compatability check inside each plugin.
         this.projectKey = projectKey;
@@ -50,6 +50,5 @@ this.options = Object.assign({
             __debug_report_edp: null,
+            localStorage: window.localStorage,
+            sessionStorage: window.sessionStorage,
         }, options);
-        if (sessionToken != null) {
-            sessionStorage.setItem(this.options.session_token_key, sessionToken);
-        }
         this.revID = this.options.revID;
@@ -64,2 +63,7 @@ this.sanitizer = new sanitizer_js_1.default(this, options);
         this.session = new session_js_1.default(this);
+        this.localStorage = this.options.localStorage;
+        this.sessionStorage = this.options.sessionStorage;
+        if (sessionToken != null) {
+            this.sessionStorage.setItem(this.options.session_token_key, sessionToken);
+        }
         try {
@@ -172,3 +176,3 @@ this.worker = new Worker(URL.createObjectURL(new Blob([`"use strict";function t(t){function i(...i){return new t(...i)}return i.prototype=t.prototype,i}const i=new Map;const s=t(class{constructor(t,i,s){this.pageNo=t,this.firstIndex=i,this.timestamp=s,this._id=80}encode(t){return t.uint(80)&&t.uint(this.pageNo)&&t.uint(this.firstIndex)&&t.int(this.timestamp)}});i.set(80,s);const e=t(class{constructor(t){this.timestamp=t,this._id=0}encode(t){return t.uint(0)&&t.uint(this.timestamp)}});i.set(0,e);const n=t(class{constructor(t,i,s){this.url=t,this.referrer=i,this.navigationStart=s,this._id=4}encode(t){return t.uint(4)&&t.string(this.url)&&t.string(this.referrer)&&t.uint(this.navigationStart)}});i.set(4,n);const r=t(class{constructor(t,i){this.width=t,this.height=i,this._id=5}encode(t){return t.uint(5)&&t.uint(this.width)&&t.uint(this.height)}});i.set(5,r);const h=t(class{constructor(t,i){this.x=t,this.y=i,this._id=6}encode(t){return t.uint(6)&&t.int(this.x)&&t.int(this.y)}});i.set(6,h);const o=t(class{constructor(){this._id=7}encode(t){return t.uint(7)}});i.set(7,o);const c=t(class{constructor(t,i,s,e,n){this.id=t,this.parentID=i,this.index=s,this.tag=e,this.svg=n,this._id=8}encode(t){return t.uint(8)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)&&t.string(this.tag)&&t.boolean(this.svg)}});i.set(8,c);const a=t(class{constructor(t,i,s){this.id=t,this.parentID=i,this.index=s,this._id=9}encode(t){return t.uint(9)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)}});i.set(9,a);const u=t(class{constructor(t,i,s){this.id=t,this.parentID=i,this.index=s,this._id=10}encode(t){return t.uint(10)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)}});i.set(10,u);const d=t(class{constructor(t){this.id=t,this._id=11}encode(t){return t.uint(11)&&t.uint(this.id)}});i.set(11,d);const l=t(class{constructor(t,i,s){this.id=t,this.name=i,this.value=s,this._id=12}encode(t){return t.uint(12)&&t.uint(this.id)&&t.string(this.name)&&t.string(this.value)}});i.set(12,l);const p=t(class{constructor(t,i){this.id=t,this.name=i,this._id=13}encode(t){return t.uint(13)&&t.uint(this.id)&&t.string(this.name)}});i.set(13,p);const m=t(class{constructor(t,i){this.id=t,this.data=i,this._id=14}encode(t){return t.uint(14)&&t.uint(this.id)&&t.string(this.data)}});i.set(14,m);const g=t(class{constructor(t,i,s){this.id=t,this.x=i,this.y=s,this._id=16}encode(t){return t.uint(16)&&t.uint(this.id)&&t.int(this.x)&&t.int(this.y)}});i.set(16,g);const f=t(class{constructor(t,i){this.id=t,this.label=i,this._id=17}encode(t){return t.uint(17)&&t.uint(this.id)&&t.string(this.label)}});i.set(17,f);const y=t(class{constructor(t,i,s){this.id=t,this.value=i,this.mask=s,this._id=18}encode(t){return t.uint(18)&&t.uint(this.id)&&t.string(this.value)&&t.int(this.mask)}});i.set(18,y);const _=t(class{constructor(t,i){this.id=t,this.checked=i,this._id=19}encode(t){return t.uint(19)&&t.uint(this.id)&&t.boolean(this.checked)}});i.set(19,_);const v=t(class{constructor(t,i){this.x=t,this.y=i,this._id=20}encode(t){return t.uint(20)&&t.uint(this.x)&&t.uint(this.y)}});i.set(20,v);const b=t(class{constructor(t,i){this.level=t,this.value=i,this._id=22}encode(t){return t.uint(22)&&t.string(this.level)&&t.string(this.value)}});i.set(22,b);const S=t(class{constructor(t,i,s,e,n,r,h,o,c){this.requestStart=t,this.responseStart=i,this.responseEnd=s,this.domContentLoadedEventStart=e,this.domContentLoadedEventEnd=n,this.loadEventStart=r,this.loadEventEnd=h,this.firstPaint=o,this.firstContentfulPaint=c,this._id=23}encode(t){return t.uint(23)&&t.uint(this.requestStart)&&t.uint(this.responseStart)&&t.uint(this.responseEnd)&&t.uint(this.domContentLoadedEventStart)&&t.uint(this.domContentLoadedEventEnd)&&t.uint(this.loadEventStart)&&t.uint(this.loadEventEnd)&&t.uint(this.firstPaint)&&t.uint(this.firstContentfulPaint)}});i.set(23,S);const w=t(class{constructor(t,i,s){this.speedIndex=t,this.visuallyComplete=i,this.timeToInteractive=s,this._id=24}encode(t){return t.uint(24)&&t.uint(this.speedIndex)&&t.uint(this.visuallyComplete)&&t.uint(this.timeToInteractive)}});i.set(24,w);const E=t(class{constructor(t,i,s){this.name=t,this.message=i,this.payload=s,this._id=25}encode(t){return t.uint(25)&&t.string(this.name)&&t.string(this.message)&&t.string(this.payload)}});i.set(25,E);const x=t(class{constructor(t,i){this.name=t,this.payload=i,this._id=27}encode(t){return t.uint(27)&&t.string(this.name)&&t.string(this.payload)}});i.set(27,x);const T=t(class{constructor(t){this.id=t,this._id=28}encode(t){return t.uint(28)&&t.string(this.id)}});i.set(28,T);const z=t(class{constructor(t){this.id=t,this._id=29}encode(t){return t.uint(29)&&t.string(this.id)}});i.set(29,z);const k=t(class{constructor(t,i){this.key=t,this.value=i,this._id=30}encode(t){return t.uint(30)&&t.string(this.key)&&t.string(this.value)}});i.set(30,k);const I=t(class{constructor(t,i,s){this.id=t,this.rule=i,this.index=s,this._id=37}encode(t){return t.uint(37)&&t.uint(this.id)&&t.string(this.rule)&&t.uint(this.index)}});i.set(37,I);const M=t(class{constructor(t,i){this.id=t,this.index=i,this._id=38}encode(t){return t.uint(38)&&t.uint(this.id)&&t.uint(this.index)}});i.set(38,M);const B=t(class{constructor(t,i,s,e,n,r,h){this.method=t,this.url=i,this.request=s,this.response=e,this.status=n,this.timestamp=r,this.duration=h,this._id=39}encode(t){return t.uint(39)&&t.string(this.method)&&t.string(this.url)&&t.string(this.request)&&t.string(this.response)&&t.uint(this.status)&&t.uint(this.timestamp)&&t.uint(this.duration)}});i.set(39,B);const L=t(class{constructor(t,i,s,e){this.name=t,this.duration=i,this.args=s,this.result=e,this._id=40}encode(t){return t.uint(40)&&t.string(this.name)&&t.uint(this.duration)&&t.string(this.args)&&t.string(this.result)}});i.set(40,L);const C=t(class{constructor(t,i){this.key=t,this.value=i,this._id=41}encode(t){return t.uint(41)&&t.string(this.key)&&t.string(this.value)}});i.set(41,C);const A=t(class{constructor(t){this.type=t,this._id=42}encode(t){return t.uint(42)&&t.string(this.type)}});i.set(42,A);const U=t(class{constructor(t,i,s){this.action=t,this.state=i,this.duration=s,this._id=44}encode(t){return t.uint(44)&&t.string(this.action)&&t.string(this.state)&&t.uint(this.duration)}});i.set(44,U);const N=t(class{constructor(t,i){this.mutation=t,this.state=i,this._id=45}encode(t){return t.uint(45)&&t.string(this.mutation)&&t.string(this.state)}});i.set(45,N);const R=t(class{constructor(t,i){this.type=t,this.payload=i,this._id=46}encode(t){return t.uint(46)&&t.string(this.type)&&t.string(this.payload)}});i.set(46,R);const O=t(class{constructor(t,i,s){this.action=t,this.state=i,this.duration=s,this._id=47}encode(t){return t.uint(47)&&t.string(this.action)&&t.string(this.state)&&t.uint(this.duration)}});i.set(47,O);const P=t(class{constructor(t,i,s,e){this.operationKind=t,this.operationName=i,this.variables=s,this.response=e,this._id=48}encode(t){return t.uint(48)&&t.string(this.operationKind)&&t.string(this.operationName)&&t.string(this.variables)&&t.string(this.response)}});i.set(48,P);const q=t(class{constructor(t,i,s,e){this.frames=t,this.ticks=i,this.totalJSHeapSize=s,this.usedJSHeapSize=e,this._id=49}encode(t){return t.uint(49)&&t.int(this.frames)&&t.int(this.ticks)&&t.uint(this.totalJSHeapSize)&&t.uint(this.usedJSHeapSize)}});i.set(49,q);const D=t(class{constructor(t,i,s,e,n,r,h,o){this.timestamp=t,this.duration=i,this.ttfb=s,this.headerSize=e,this.encodedBodySize=n,this.decodedBodySize=r,this.url=h,this.initiator=o,this._id=53}encode(t){return t.uint(53)&&t.uint(this.timestamp)&&t.uint(this.duration)&&t.uint(this.ttfb)&&t.uint(this.headerSize)&&t.uint(this.encodedBodySize)&&t.uint(this.decodedBodySize)&&t.string(this.url)&&t.string(this.initiator)}});i.set(53,D);const W=t(class{constructor(t,i){this.downlink=t,this.type=i,this._id=54}encode(t){return t.uint(54)&&t.uint(this.downlink)&&t.string(this.type)}});i.set(54,W);const H=t(class{constructor(t){this.hidden=t,this._id=55}encode(t){return t.uint(55)&&t.boolean(this.hidden)}});i.set(55,H);const J=t(class{constructor(t,i,s,e,n,r,h){this.timestamp=t,this.duration=i,this.context=s,this.containerType=e,this.containerSrc=n,this.containerId=r,this.containerName=h,this._id=59}encode(t){return t.uint(59)&&t.uint(this.timestamp)&&t.uint(this.duration)&&t.uint(this.context)&&t.uint(this.containerType)&&t.string(this.containerSrc)&&t.string(this.containerId)&&t.string(this.containerName)}});i.set(59,J);const F=t(class{constructor(t,i,s,e){this.id=t,this.name=i,this.value=s,this.baseURL=e,this._id=60}encode(t){return t.uint(60)&&t.uint(this.id)&&t.string(this.name)&&t.string(this.value)&&t.string(this.baseURL)}});i.set(60,F);const X=t(class{constructor(t,i,s){this.id=t,this.data=i,this.baseURL=s,this._id=61}encode(t){return t.uint(61)&&t.uint(this.id)&&t.string(this.data)&&t.string(this.baseURL)}});i.set(61,X);const G=t(class{constructor(t,i){this.type=t,this.value=i,this._id=63}encode(t){return t.uint(63)&&t.string(this.type)&&t.string(this.value)}});i.set(63,G);const K=t(class{constructor(t,i){this.name=t,this.payload=i,this._id=64}encode(t){return t.uint(64)&&t.string(this.name)&&t.string(this.payload)}});i.set(64,K);const j=t(class{constructor(){this._id=65}encode(t){return t.uint(65)}});i.set(65,j);const Q=t(class{constructor(t,i,s,e){this.id=t,this.rule=i,this.index=s,this.baseURL=e,this._id=67}encode(t){return t.uint(67)&&t.uint(this.id)&&t.string(this.rule)&&t.uint(this.index)&&t.string(this.baseURL)}});i.set(67,Q);const V=t(class{constructor(t,i,s,e){this.id=t,this.hesitationTime=i,this.label=s,this.selector=e,this._id=69}encode(t){return t.uint(69)&&t.uint(this.id)&&t.uint(this.hesitationTime)&&t.string(this.label)&&t.string(this.selector)}});i.set(69,V);const Y=t(class{constructor(t,i){this.frameID=t,this.id=i,this._id=70}encode(t){return t.uint(70)&&t.uint(this.frameID)&&t.uint(this.id)}});i.set(70,Y);class Z{constructor(t,i,s,e=10,n=1e3){this.onUnauthorised=i,this.onFailure=s,this.MAX_ATTEMPTS_COUNT=e,this.ATTEMPT_TIMEOUT=n,this.attemptsCount=0,this.busy=!1,this.queue=[],this.token=null,this.ingestURL=t+"/v1/web/i"}authorise(t){this.token=t}push(t){this.busy||!this.token?this.queue.push(t):this.sendBatch(t)}retry(t){this.attemptsCount>=this.MAX_ATTEMPTS_COUNT?this.onFailure():(this.attemptsCount++,setTimeout(()=>this.sendBatch(t),this.ATTEMPT_TIMEOUT*this.attemptsCount))}sendBatch(t){this.busy=!0,fetch(this.ingestURL,{body:t,method:"POST",headers:{Authorization:"Bearer "+this.token},keepalive:t.length<65536}).then(i=>{if(401===i.status)return this.busy=!1,void this.onUnauthorised();if(i.status>=400)return void this.retry(t);this.attemptsCount=0;const s=this.queue.shift();s?this.sendBatch(s):this.busy=!1}).catch(i=>{console.warn("OpenReplay:",i),this.retry(t)})}clean(){this.queue.length=0}}const tt="function"==typeof TextEncoder?new TextEncoder:{encode(t){const i=t.length,s=new Uint8Array(3*i);let e=-1;for(var n=0,r=0,h=0;h!==i;){if(n=t.charCodeAt(h),h+=1,n>=55296&&n<=56319){if(h===i){s[e+=1]=239,s[e+=1]=191,s[e+=1]=189;break}if(!((r=t.charCodeAt(h))>=56320&&r<=57343)){s[e+=1]=239,s[e+=1]=191,s[e+=1]=189;continue}if(h+=1,(n=1024*(n-55296)+r-56320+65536)>65535){s[e+=1]=240|n>>>18,s[e+=1]=128|n>>>12&63,s[e+=1]=128|n>>>6&63,s[e+=1]=128|63&n;continue}}n<=127?s[e+=1]=0|n:n<=2047?(s[e+=1]=192|n>>>6,s[e+=1]=128|63&n):(s[e+=1]=224|n>>>12,s[e+=1]=128|n>>>6&63,s[e+=1]=128|63&n)}return s.subarray(0,e+1)}};class it{constructor(t){this.size=t,this.offset=0,this.checkpointOffset=0,this.data=new Uint8Array(t)}checkpoint(){this.checkpointOffset=this.offset}isEmpty(){return 0===this.offset}boolean(t){return this.data[this.offset++]=+t,this.offset<=this.size}uint(t){for((t<0||t>Number.MAX_SAFE_INTEGER)&&(t=0);t>=128;)this.data[this.offset++]=t%256|128,t=Math.floor(t/128);return this.data[this.offset++]=t,this.offset<=this.size}int(t){return t=Math.round(t),this.uint(t>=0?2*t:-2*t-1)}string(t){const i=tt.encode(t),s=i.byteLength;return!(!this.uint(s)||this.offset+s>this.size)&&(this.data.set(i,this.offset),this.offset+=s,!0)}reset(){this.offset=0,this.checkpointOffset=0}flush(){const t=this.data.slice(0,this.checkpointOffset);return this.reset(),t}}class st{constructor(t,i,s){this.pageNo=t,this.timestamp=i,this.onBatch=s,this.nextIndex=0,this.beaconSize=2e5,this.writer=new it(this.beaconSize),this.isEmpty=!0,this.beaconSizeLimit=1e6,this.prepareBatchMeta()}prepareBatchMeta(){return new s(this.pageNo,this.nextIndex,this.timestamp).encode(this.writer)}setBeaconSizeLimit(t){this.beaconSizeLimit=t}writeMessage(t){if(t instanceof e&&(this.timestamp=t.timestamp),!t.encode(this.writer))for(this.isEmpty||(this.onBatch(this.writer.flush()),this.prepareBatchMeta());!t.encode(this.writer);){if(this.beaconSize===this.beaconSizeLimit)return console.warn("OpenReplay: beacon size overflow. Skipping large message."),this.writer.reset(),this.prepareBatchMeta(),void(this.isEmpty=!0);this.beaconSize=Math.min(2*this.beaconSize,this.beaconSizeLimit),this.writer=new it(this.beaconSize),this.prepareBatchMeta()}this.writer.checkpoint(),this.nextIndex++,this.isEmpty=!1}finaliseBatch(){this.isEmpty||(this.onBatch(this.writer.flush()),this.prepareBatchMeta(),this.isEmpty=!0)}clean(){this.writer.reset()}}let et=null,nt=null;function rt(){nt&&nt.finaliseBatch()}function ht(){null!==ct&&(clearInterval(ct),ct=null),nt&&(nt.clean(),nt=null)}let ot,ct=null;self.onmessage=({data:t})=>{if(null!=t){if("stop"===t)return rt(),void ht();if(Array.isArray(t)){if(!nt)throw new Error("WebWorker: writer not initialised.");const s=nt;t.forEach(t=>{const e=new(i.get(t._id));Object.assign(e,t),e instanceof H&&(e.hidden?ot=setTimeout(()=>self.postMessage("restart"),18e5):clearTimeout(ot)),s.writeMessage(e)})}else{if("start"===t.type)return et=new Z(t.ingestPoint,()=>{self.postMessage("restart")},()=>{et&&(et.clean(),et=null),ht(),self.postMessage("failed")},t.connAttemptCount,t.connAttemptGap),nt=new st(t.pageNo,t.timestamp,t=>et&&et.push(t)),void(null===ct&&(ct=setInterval(rt,1e4)));if("auth"===t.type){if(!et)throw new Error("WebWorker: sender not initialised. Recieved auth.");if(!nt)throw new Error("WebWorker: writer not initialised. Recieved auth.");return et.authorise(t.token),void(t.beaconSizeLimit&&nt.setBeaconSizeLimit(t.beaconSizeLimit))}}}else rt()};
         return {
-            userUUID: localStorage.getItem(this.options.local_uuid_key),
+            userUUID: this.localStorage.getItem(this.options.local_uuid_key),
             projectKey: this.projectKey,
@@ -185,3 +189,3 @@ revID: this.revID,
     getSessionToken() {
-        const token = sessionStorage.getItem(this.options.session_token_key);
+        const token = this.sessionStorage.getItem(this.options.session_token_key);
         if (token !== null) {
@@ -228,6 +232,6 @@ return token;
         if (flag) {
-            sessionStorage.setItem(this.options.session_reset_key, 't');
+            this.sessionStorage.setItem(this.options.session_reset_key, 't');
         }
         else {
-            sessionStorage.removeItem(this.options.session_reset_key);
+            this.sessionStorage.removeItem(this.options.session_reset_key);
         }
@@ -244,3 +248,3 @@ }
         let pageNo = 0;
-        const pageNoStr = sessionStorage.getItem(this.options.session_pageno_key);
+        const pageNoStr = this.sessionStorage.getItem(this.options.session_pageno_key);
         if (pageNoStr != null) {
@@ -250,3 +254,3 @@ pageNo = parseInt(pageNoStr);
         }
-        sessionStorage.setItem(this.options.session_pageno_key, pageNo.toString());
+        this.sessionStorage.setItem(this.options.session_pageno_key, pageNo.toString());
         const startInfo = this.getStartInfo();
@@ -262,4 +266,4 @@ const startWorkerMsg = {
         this.worker.postMessage(startWorkerMsg); // brings delay of 10th ms?
-        const sReset = sessionStorage.getItem(this.options.session_reset_key);
-        sessionStorage.removeItem(this.options.session_reset_key);
+        const sReset = this.sessionStorage.getItem(this.options.session_reset_key);
+        this.sessionStorage.removeItem(this.options.session_reset_key);
         return window.fetch(this.options.ingestPoint + '/v1/web/start', {
@@ -270,3 +274,3 @@ method: 'POST',
             },
-            body: JSON.stringify(Object.assign(Object.assign({}, startInfo), { userID: startOpts.userID || this.session.getInfo().userID, token: sessionStorage.getItem(this.options.session_token_key), deviceMemory: performance_js_1.deviceMemory,
+            body: JSON.stringify(Object.assign(Object.assign({}, startInfo), { userID: startOpts.userID || this.session.getInfo().userID, token: this.sessionStorage.getItem(this.options.session_token_key), deviceMemory: performance_js_1.deviceMemory,
                 jsHeapSizeLimit: performance_js_1.jsHeapSizeLimit, reset: startOpts.forceNew || sReset !== null })),
@@ -294,4 +298,4 @@ })
             }
-            sessionStorage.setItem(this.options.session_token_key, token);
-            localStorage.setItem(this.options.local_uuid_key, userUUID);
+            this.sessionStorage.setItem(this.options.session_token_key, token);
+            this.localStorage.setItem(this.options.local_uuid_key, userUUID);
             this.session.update(Object.assign({ sessionID }, startOpts));
@@ -317,3 +321,3 @@ this.activityState = ActivityState.Active;
             .catch(reason => {
-            sessionStorage.removeItem(this.options.session_token_key);
+            this.sessionStorage.removeItem(this.options.session_token_key);
             this.stop();
@@ -320,0 +324,0 @@ if (reason === CANCELED) {

cjs/app/nodes.d.ts

@@ -10,3 +10,3 @@ declare type NodeCallback = (node: Node) => void;
     attachElementListener(type: string, node: Element, elementListener: EventListener): void;
-    registerNode(node: Node): [number, boolean];
+    registerNode(node: Node): [id: number, isNew: boolean];
     unregisterNode(node: Node): number | undefined;
@@ -13,0 +13,0 @@ callNodeCallbacks(node: Node): void;

cjs/app/observer/observer.d.ts

@@ -7,7 +7,7 @@ import App from "../index.js";
     private readonly commited;
-    private readonly recents;
-    private readonly myNodes;
     private readonly indexes;
     private readonly attributesList;
     private readonly textSet;
+    private readonly newSet;
+    private readonly affectedSet;
     constructor(app: App, isTopContext?: boolean);
@@ -14,0 +14,0 @@ private clear;

cjs/app/observer/observer.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const messages_js_1 = require("../../common/messages.js");
-const context_js_1 = require("../context.js");
-function isSVGElement(node) {
-    return node.namespaceURI === 'http://www.w3.org/2000/svg';
-}
+const guards_js_1 = require("../guards.js");
 function isIgnored(node) {
-    if ((0, context_js_1.isInstance)(node, Text)) {
+    if ((0, guards_js_1.isTextNode)(node)) {
         return false;
     }
-    if (!(0, context_js_1.isInstance)(node, Element)) {
+    if (!(0, guards_js_1.isElementNode)(node)) {
         return true;
@@ -27,7 +24,4 @@ }
 }
-function isRootNode(node) {
-    return (0, context_js_1.isInstance)(node, Document) || (0, context_js_1.isInstance)(node, ShadowRoot);
-}
 function isObservable(node) {
-    if (isRootNode(node)) {
+    if ((0, guards_js_1.isRootNode)(node)) {
         return true;
@@ -42,7 +36,7 @@ }
         this.commited = [];
-        this.recents = [];
-        this.myNodes = [];
         this.indexes = [];
         this.attributesList = [];
         this.textSet = new Set();
+        this.newSet = new Set();
+        this.affectedSet = new Set();
         this.observer = new MutationObserver(this.app.safe((mutations) => {
@@ -52,3 +46,3 @@ for (const mutation of mutations) {
                 const type = mutation.type;
-                if (!isObservable(target) || !(0, context_js_1.inDocument)(target)) {
+                if (!isObservable(target) /*|| !inDocument() */) {
                     continue;
@@ -58,2 +52,5 @@ }
                     for (let i = 0; i < mutation.removedNodes.length; i++) {
+                        // TODO:  handle node removal separately from binding. 
+                        // Node removals should go first in the commit. 
+                        // To check: MoveNode and other possible unbinding behaviours 
                         this.bindTree(mutation.removedNodes[i]);
@@ -70,5 +67,2 @@ }
                 }
-                if (id >= this.recents.length) { // TODO: something more convinient
-                    this.recents[id] = undefined;
-                }
                 if (type === 'attributes') {
@@ -84,2 +78,3 @@ const name = mutation.attributeName;
                     attr.add(name);
+                    this.affectedSet.add(id);
                     continue;
@@ -89,2 +84,3 @@ }
                     this.textSet.add(id);
+                    this.affectedSet.add(id);
                     continue;
@@ -98,9 +94,10 @@ }
         this.commited.length = 0;
-        this.recents.length = 0;
         this.indexes.length = 1;
         this.attributesList.length = 0;
         this.textSet.clear();
+        this.newSet.clear();
+        this.affectedSet.clear();
     }
     sendNodeAttribute(id, node, name, value) {
-        if (isSVGElement(node)) {
+        if ((0, guards_js_1.isSVGElement)(node)) {
             if (name.substr(0, 6) === 'xlink:') {
@@ -132,3 +129,3 @@ name = name.substr(6);
         if (name === 'value' &&
-            (0, context_js_1.isInstance)(node, HTMLInputElement) &&
+            (0, guards_js_1.hasTag)(node, "INPUT") &&
             node.type !== 'button' &&
@@ -143,3 +140,3 @@ node.type !== 'reset' &&
         }
-        if (name === 'style' || name === 'href' && (0, context_js_1.isInstance)(node, HTMLLinkElement)) {
+        if (name === 'style' || name === 'href' && (0, guards_js_1.hasTag)(node, "LINK")) {
             this.app.send(new messages_js_1.SetNodeAttributeURLBased(id, name, value, this.app.getBaseHref()));
@@ -154,3 +151,3 @@ return;
     sendNodeData(id, parentElement, data) {
-        if ((0, context_js_1.isInstance)(parentElement, HTMLStyleElement) || (0, context_js_1.isInstance)(parentElement, SVGStyleElement)) {
+        if ((0, guards_js_1.hasTag)(parentElement, "STYLE")) {
             this.app.send(new messages_js_1.SetCSSDataURLBased(id, data, this.app.getBaseHref()));
@@ -163,6 +160,7 @@ return;
     bindNode(node) {
-        const r = this.app.nodes.registerNode(node);
-        const id = r[0];
-        this.recents[id] = r[1] || this.recents[id] || false;
-        this.myNodes[id] = true;
+        const [id, isNew] = this.app.nodes.registerNode(node);
+        if (isNew) {
+            this.newSet.add(id);
+        }
+        this.affectedSet.add(id);
     }
@@ -187,3 +185,4 @@ bindTree(node) {
         const id = this.app.nodes.unregisterNode(node);
-        if (id !== undefined && this.recents[id] === false) {
+        //    if (id !== undefined && this.recents[id] === false) { // In the old version it === flase when bindNode() was called on node but it was not new
+        if (id !== undefined && !this.newSet.has(id) && this.affectedSet.has(id)) { // Unbinding logic should be simplified. Node removals should go first.
             this.app.send(new messages_js_1.RemoveNode(id));
@@ -193,3 +192,3 @@ }
     _commitNode(id, node) {
-        if (isRootNode(node)) {
+        if ((0, guards_js_1.isRootNode)(node)) {
             return true;
@@ -202,3 +201,3 @@ }
         // TODO: Clean the logic (though now it workd fine) 
-        if (!(0, context_js_1.isInstance)(node, HTMLHtmlElement) || !this.isTopContext) {
+        if (!(0, guards_js_1.hasTag)(node, "HTML") || !this.isTopContext) {
             if (parent === null) {
@@ -230,5 +229,5 @@ this.unbindNode(node);
         if (sibling === null) {
-            this.indexes[id] = 0; //
+            this.indexes[id] = 0;
         }
-        const isNew = this.recents[id];
+        const isNew = this.newSet.has(id);
         const index = this.indexes[id];
@@ -239,5 +238,5 @@ if (index === undefined) {
         if (isNew === true) {
-            if ((0, context_js_1.isInstance)(node, Element)) {
+            if ((0, guards_js_1.isElementNode)(node)) {
                 if (parentID !== undefined) {
-                    this.app.send(new messages_js_1.CreateElementNode(id, parentID, index, node.tagName, isSVGElement(node)));
+                    this.app.send(new messages_js_1.CreateElementNode(id, parentID, index, node.tagName, (0, guards_js_1.isSVGElement)(node)));
                 }
@@ -249,3 +248,3 @@ for (let i = 0; i < node.attributes.length; i++) {
             }
-            else if ((0, context_js_1.isInstance)(node, Text)) {
+            else if ((0, guards_js_1.isTextNode)(node)) {
                 // for text node id != 0, hence parentID !== undefined and parent is Element
@@ -258,2 +257,3 @@ this.app.send(new messages_js_1.CreateTextNode(id, parentID, index));
         if (isNew === false && parentID !== undefined) {
+            // does this happen a lot?
             this.app.send(new messages_js_1.MoveNode(id, parentID, index));
@@ -263,3 +263,3 @@ }
         if (attr !== undefined) {
-            if (!(0, context_js_1.isInstance)(node, Element)) {
+            if (!(0, guards_js_1.isElementNode)(node)) {
                 throw 'commitNode: node is not an element';
@@ -272,3 +272,3 @@ }
         if (this.textSet.has(id)) {
-            if (!(0, context_js_1.isInstance)(node, Text)) {
+            if (!(0, guards_js_1.isTextNode)(node)) {
                 throw 'commitNode: node is not a text';
@@ -294,15 +294,8 @@ }
         let node;
-        for (let id = 0; id < this.recents.length; id++) {
-            // TODO: make things/logic nice here.
-            // commit required in any case if recents[id] true or false (in case of unbinding) or undefined (in case of attr change).
-            // Possible solution: separate new node commit (recents) and new attribute/move node commit
-            // Otherwise commitNode is called on each node, which might be a lot
-            if (!this.myNodes[id]) {
-                continue;
-            }
+        this.affectedSet.forEach(id => {
             this.commitNode(id);
-            if (this.recents[id] === true && (node = this.app.nodes.getNode(id))) {
+            if (this.newSet.has(id) && (node = this.app.nodes.getNode(id))) {
                 this.app.nodes.callNodeCallbacks(node);
             }
-        }
+        });
         this.clear();
@@ -327,5 +320,4 @@ }
         this.clear();
-        this.myNodes.length = 0;
     }
 }
 exports.default = Observer;

cjs/app/observer/top_observer.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const observer_js_1 = require("./observer.js");
-const context_js_1 = require("../context.js");
+const guards_js_1 = require("../guards.js");
 const iframe_observer_js_1 = require("./iframe_observer.js");
@@ -20,3 +20,3 @@ const shadow_root_observer_js_1 = require("./shadow_root_observer.js");
         this.app.nodes.attachNodeCallback(node => {
-            if ((0, context_js_1.isInstance)(node, HTMLIFrameElement) &&
+            if ((0, guards_js_1.hasTag)(node, "IFRAME") &&
                 ((this.options.captureIFrames && !(0, utils_js_1.hasOpenreplayAttribute)(node, "obscured"))
@@ -29,3 +29,3 @@ || (0, utils_js_1.hasOpenreplayAttribute)(node, "capture"))) {
         this.app.nodes.attachNodeCallback(node => {
-            if ((0, context_js_1.isInstance)(node, Element) && node.shadowRoot !== null) {
+            if ((0, guards_js_1.isElementNode)(node) && node.shadowRoot !== null) {
                 this.handleShadowRoot(node.shadowRoot);
@@ -32,0 +32,0 @@ }

cjs/app/sanitizer.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const utils_js_1 = require("../utils.js");
-const context_js_1 = require("./context.js");
+const guards_js_1 = require("./guards.js");
 class Sanitizer {
@@ -16,3 +16,3 @@ constructor(app, options) {
         if (this.masked.has(parentID) ||
-            ((0, context_js_1.isInstance)(node, Element) && (0, utils_js_1.hasOpenreplayAttribute)(node, 'masked'))) {
+            ((0, guards_js_1.isElementNode)(node) && (0, utils_js_1.hasOpenreplayAttribute)(node, 'masked'))) {
             this.masked.add(id);
@@ -19,0 +19,0 @@ }

cjs/index.js

@@ -130,3 +130,3 @@ "use strict";
             req.send(JSON.stringify({
-                trackerVersion: '3.5.12',
+                trackerVersion: '3.5.13-beta.0',
                 projectKey: options.projectKey,
@@ -133,0 +133,0 @@ doNotTrack,

cjs/modules/console.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export interface Options {
@@ -3,0 +3,0 @@ consoleMethods: Array<string> | null;

cjs/modules/console.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+const guards_js_1 = require("../app/guards.js");
 const utils_js_1 = require("../utils.js");
@@ -118,3 +119,3 @@ const messages_js_1 = require("../common/messages.js");
     app.nodes.attachNodeCallback(app.safe(node => {
-        if (node instanceof HTMLIFrameElement) {
+        if ((0, guards_js_1.hasTag)(node, "IFRAME")) { // TODO: newContextCallback
             let context = node.contentWindow;
@@ -121,0 +122,0 @@ if (context) {

cjs/modules/cssrules.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App | null): void;

cjs/modules/cssrules.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 const messages_js_1 = require("../common/messages.js");
+const guards_js_1 = require("../app/guards.js");
 function default_1(app) {
@@ -35,8 +36,5 @@ if (app === null) {
     app.nodes.attachNodeCallback((node) => {
-        if (!(node instanceof HTMLStyleElement)) {
+        if (!(0, guards_js_1.hasTag)(node, "STYLE") || !node.sheet) {
             return;
         }
-        if (!(node.sheet instanceof CSSStyleSheet)) {
-            return;
-        }
         if (node.textContent !== null && node.textContent.trim().length > 0) {
@@ -43,0 +41,0 @@ return; // Only fully virtual sheets maintained so far

cjs/modules/exception.d.ts

@@ -0,3 +1,3 @@
+import type App from "../app/index.js";
 import type Message from "../common/messages.js";
-import App from "../app/index.js";
 export interface Options {
@@ -4,0 +4,0 @@ captureExceptions: boolean;

cjs/modules/img.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

cjs/modules/img.js

@@ -5,2 +5,3 @@ "use strict";
 const messages_js_1 = require("../common/messages.js");
+const guards_js_1 = require("../app/guards.js");
 const PLACEHOLDER_SRC = "https://static.openreplay.com/tracker/placeholder.jpeg";
@@ -53,3 +54,3 @@ function default_1(app) {
     app.nodes.attachNodeCallback((node) => {
-        if (!(node instanceof HTMLImageElement)) {
+        if (!(0, guards_js_1.hasTag)(node, "IMG")) {
             return;
@@ -56,0 +57,0 @@ }

cjs/modules/input.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 declare type TextEditableElement = HTMLInputElement | HTMLTextAreaElement;
@@ -3,0 +3,0 @@ export declare function getInputLabel(node: TextEditableElement): string;

cjs/modules/input.js

@@ -5,8 +5,9 @@ "use strict";
 const utils_js_1 = require("../utils.js");
+const guards_js_1 = require("../app/guards.js");
 const messages_js_1 = require("../common/messages.js");
 function isTextEditable(node) {
-    if (node instanceof HTMLTextAreaElement) {
+    if ((0, guards_js_1.hasTag)(node, "TEXTAREA")) {
         return true;
     }
-    if (!(node instanceof HTMLInputElement)) {
+    if (!(0, guards_js_1.hasTag)(node, "INPUT")) {
         return false;
@@ -23,3 +24,3 @@ }
 function isCheckable(node) {
-    if (!(node instanceof HTMLInputElement)) {
+    if (!(0, guards_js_1.hasTag)(node, "INPUT")) {
         return false;
@@ -34,3 +35,3 @@ }
         while ((p = p.parentNode) !== null) {
-            if (p instanceof HTMLLabelElement) {
+            if ((0, guards_js_1.hasTag)(p, "LABEL")) {
                 return p;
@@ -47,3 +48,3 @@ }
         while ((p = p.parentNode) !== null) {
-            if (p instanceof HTMLLabelElement) {
+            if ((0, guards_js_1.hasTag)(p, "LABEL")) {
                 return p;
@@ -78,3 +79,3 @@ }
         obscureInputEmails: true,
-        defaultInputMode: 0 /* Plain */,
+        defaultInputMode: 0 /* InputMode.Plain */,
     }, opts);
@@ -91,18 +92,18 @@ function sendInputTarget(id, node) {
         if (node.type === 'password' || (0, utils_js_1.hasOpenreplayAttribute)(node, 'hidden')) {
-            inputMode = 2 /* Hidden */;
+            inputMode = 2 /* InputMode.Hidden */;
         }
         else if ((0, utils_js_1.hasOpenreplayAttribute)(node, 'obscured') ||
-            (inputMode === 0 /* Plain */ &&
+            (inputMode === 0 /* InputMode.Plain */ &&
                 ((options.obscureInputNumbers && /\d\d\d\d/.test(value)) ||
                     (options.obscureInputEmails &&
                         (node.type === 'email' || !!~value.indexOf('@')))))) {
-            inputMode = 1 /* Obscured */;
+            inputMode = 1 /* InputMode.Obscured */;
         }
         let mask = 0;
         switch (inputMode) {
-            case 2 /* Hidden */:
+            case 2 /* InputMode.Hidden */:
                 mask = -1;
                 value = '';
                 break;
-            case 1 /* Obscured */:
+            case 1 /* InputMode.Obscured */:
                 mask = value.length;
@@ -157,3 +158,3 @@ value = '';
         // TODO: support multiple select (?): use selectedOptions; Need send target?
-        if (node instanceof HTMLSelectElement) {
+        if ((0, guards_js_1.hasTag)(node, "SELECT")) {
             sendInputValue(id, node);
@@ -160,0 +161,0 @@ app.attachEventListener(node, "change", () => {

cjs/modules/longtasks.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

cjs/modules/mouse.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

cjs/modules/mouse.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+const guards_js_1 = require("../app/guards.js");
 const utils_js_1 = require("../utils.js");
@@ -52,3 +53,3 @@ const messages_js_1 = require("../common/messages.js");
     }
-    if (target instanceof SVGElement) {
+    if ((0, guards_js_1.isSVGElement)(target)) {
         let owner = target.ownerSVGElement;
@@ -83,3 +84,3 @@ while (owner !== null) {
         }
-        if (target instanceof HTMLInputElement) {
+        if ((0, guards_js_1.hasTag)(target, "INPUT")) {
             return (0, input_js_1.getInputLabel)(target);
@@ -86,0 +87,0 @@ }

cjs/modules/performance.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export declare const deviceMemory: number;
@@ -3,0 +3,0 @@ export declare const jsHeapSizeLimit: number;

cjs/modules/scroll.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

cjs/modules/scroll.js

@@ -25,7 +25,7 @@ "use strict";
     });
-    app.nodes.attachNodeCallback(node => {
-        if (node instanceof Element && node.scrollLeft + node.scrollTop > 0) {
-            nodeScroll.set(node, [node.scrollLeft, node.scrollTop]);
-        }
-    });
+    // app.nodes.attachNodeCallback(node => {
+    //   if (isElementNode(node) && node.scrollLeft + node.scrollTop > 0) {
+    //     nodeScroll.set(node, [node.scrollLeft, node.scrollTop]);
+    //   }
+    // })
     app.attachEventListener(window, 'scroll', (e) => {
@@ -32,0 +32,0 @@ const target = e.target;

cjs/modules/timing.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export interface Options {
@@ -3,0 +3,0 @@ captureResourceTimings: boolean;

cjs/modules/timing.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+const guards_js_1 = require("../app/guards.js");
 const utils_js_1 = require("../utils.js");
@@ -12,3 +13,3 @@ const messages_js_1 = require("../common/messages.js");
         let src = '';
-        if (element instanceof HTMLImageElement) {
+        if ((0, guards_js_1.hasTag)(element, "IMG")) {
             src = element.currentSrc || element.src;
@@ -15,0 +16,0 @@ }

cjs/modules/viewport.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

lib/app/index.d.ts

@@ -47,2 +47,4 @@ import type Message from "../common/messages.js";
     __debug__?: LoggerOptions;
+    localStorage: Storage;
+    sessionStorage: Storage;
     onStart?: StartCallback;
@@ -60,2 +62,4 @@ } & WebworkerOptions;
     readonly session: Session;
+    readonly localStorage: Storage;
+    readonly sessionStorage: Storage;
     private readonly messages;
@@ -62,0 +66,0 @@ private readonly observer;

lib/app/index.js

@@ -32,3 +32,3 @@ import { Timestamp } from "../common/messages.js";
         this.activityState = ActivityState.NotActive;
-        this.version = '3.5.12'; // TODO: version compatability check inside each plugin.
+        this.version = '3.5.13-beta.0'; // TODO: version compatability check inside each plugin.
         this.projectKey = projectKey;
@@ -47,6 +47,5 @@ this.options = Object.assign({
             __debug_report_edp: null,
+            localStorage: window.localStorage,
+            sessionStorage: window.sessionStorage,
         }, options);
-        if (sessionToken != null) {
-            sessionStorage.setItem(this.options.session_token_key, sessionToken);
-        }
         this.revID = this.options.revID;
@@ -61,2 +60,7 @@ this.sanitizer = new Sanitizer(this, options);
         this.session = new Session(this);
+        this.localStorage = this.options.localStorage;
+        this.sessionStorage = this.options.sessionStorage;
+        if (sessionToken != null) {
+            this.sessionStorage.setItem(this.options.session_token_key, sessionToken);
+        }
         try {
@@ -169,3 +173,3 @@ this.worker = new Worker(URL.createObjectURL(new Blob([`"use strict";function t(t){function i(...i){return new t(...i)}return i.prototype=t.prototype,i}const i=new Map;const s=t(class{constructor(t,i,s){this.pageNo=t,this.firstIndex=i,this.timestamp=s,this._id=80}encode(t){return t.uint(80)&&t.uint(this.pageNo)&&t.uint(this.firstIndex)&&t.int(this.timestamp)}});i.set(80,s);const e=t(class{constructor(t){this.timestamp=t,this._id=0}encode(t){return t.uint(0)&&t.uint(this.timestamp)}});i.set(0,e);const n=t(class{constructor(t,i,s){this.url=t,this.referrer=i,this.navigationStart=s,this._id=4}encode(t){return t.uint(4)&&t.string(this.url)&&t.string(this.referrer)&&t.uint(this.navigationStart)}});i.set(4,n);const r=t(class{constructor(t,i){this.width=t,this.height=i,this._id=5}encode(t){return t.uint(5)&&t.uint(this.width)&&t.uint(this.height)}});i.set(5,r);const h=t(class{constructor(t,i){this.x=t,this.y=i,this._id=6}encode(t){return t.uint(6)&&t.int(this.x)&&t.int(this.y)}});i.set(6,h);const o=t(class{constructor(){this._id=7}encode(t){return t.uint(7)}});i.set(7,o);const c=t(class{constructor(t,i,s,e,n){this.id=t,this.parentID=i,this.index=s,this.tag=e,this.svg=n,this._id=8}encode(t){return t.uint(8)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)&&t.string(this.tag)&&t.boolean(this.svg)}});i.set(8,c);const a=t(class{constructor(t,i,s){this.id=t,this.parentID=i,this.index=s,this._id=9}encode(t){return t.uint(9)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)}});i.set(9,a);const u=t(class{constructor(t,i,s){this.id=t,this.parentID=i,this.index=s,this._id=10}encode(t){return t.uint(10)&&t.uint(this.id)&&t.uint(this.parentID)&&t.uint(this.index)}});i.set(10,u);const d=t(class{constructor(t){this.id=t,this._id=11}encode(t){return t.uint(11)&&t.uint(this.id)}});i.set(11,d);const l=t(class{constructor(t,i,s){this.id=t,this.name=i,this.value=s,this._id=12}encode(t){return t.uint(12)&&t.uint(this.id)&&t.string(this.name)&&t.string(this.value)}});i.set(12,l);const p=t(class{constructor(t,i){this.id=t,this.name=i,this._id=13}encode(t){return t.uint(13)&&t.uint(this.id)&&t.string(this.name)}});i.set(13,p);const m=t(class{constructor(t,i){this.id=t,this.data=i,this._id=14}encode(t){return t.uint(14)&&t.uint(this.id)&&t.string(this.data)}});i.set(14,m);const g=t(class{constructor(t,i,s){this.id=t,this.x=i,this.y=s,this._id=16}encode(t){return t.uint(16)&&t.uint(this.id)&&t.int(this.x)&&t.int(this.y)}});i.set(16,g);const f=t(class{constructor(t,i){this.id=t,this.label=i,this._id=17}encode(t){return t.uint(17)&&t.uint(this.id)&&t.string(this.label)}});i.set(17,f);const y=t(class{constructor(t,i,s){this.id=t,this.value=i,this.mask=s,this._id=18}encode(t){return t.uint(18)&&t.uint(this.id)&&t.string(this.value)&&t.int(this.mask)}});i.set(18,y);const _=t(class{constructor(t,i){this.id=t,this.checked=i,this._id=19}encode(t){return t.uint(19)&&t.uint(this.id)&&t.boolean(this.checked)}});i.set(19,_);const v=t(class{constructor(t,i){this.x=t,this.y=i,this._id=20}encode(t){return t.uint(20)&&t.uint(this.x)&&t.uint(this.y)}});i.set(20,v);const b=t(class{constructor(t,i){this.level=t,this.value=i,this._id=22}encode(t){return t.uint(22)&&t.string(this.level)&&t.string(this.value)}});i.set(22,b);const S=t(class{constructor(t,i,s,e,n,r,h,o,c){this.requestStart=t,this.responseStart=i,this.responseEnd=s,this.domContentLoadedEventStart=e,this.domContentLoadedEventEnd=n,this.loadEventStart=r,this.loadEventEnd=h,this.firstPaint=o,this.firstContentfulPaint=c,this._id=23}encode(t){return t.uint(23)&&t.uint(this.requestStart)&&t.uint(this.responseStart)&&t.uint(this.responseEnd)&&t.uint(this.domContentLoadedEventStart)&&t.uint(this.domContentLoadedEventEnd)&&t.uint(this.loadEventStart)&&t.uint(this.loadEventEnd)&&t.uint(this.firstPaint)&&t.uint(this.firstContentfulPaint)}});i.set(23,S);const w=t(class{constructor(t,i,s){this.speedIndex=t,this.visuallyComplete=i,this.timeToInteractive=s,this._id=24}encode(t){return t.uint(24)&&t.uint(this.speedIndex)&&t.uint(this.visuallyComplete)&&t.uint(this.timeToInteractive)}});i.set(24,w);const E=t(class{constructor(t,i,s){this.name=t,this.message=i,this.payload=s,this._id=25}encode(t){return t.uint(25)&&t.string(this.name)&&t.string(this.message)&&t.string(this.payload)}});i.set(25,E);const x=t(class{constructor(t,i){this.name=t,this.payload=i,this._id=27}encode(t){return t.uint(27)&&t.string(this.name)&&t.string(this.payload)}});i.set(27,x);const T=t(class{constructor(t){this.id=t,this._id=28}encode(t){return t.uint(28)&&t.string(this.id)}});i.set(28,T);const z=t(class{constructor(t){this.id=t,this._id=29}encode(t){return t.uint(29)&&t.string(this.id)}});i.set(29,z);const k=t(class{constructor(t,i){this.key=t,this.value=i,this._id=30}encode(t){return t.uint(30)&&t.string(this.key)&&t.string(this.value)}});i.set(30,k);const I=t(class{constructor(t,i,s){this.id=t,this.rule=i,this.index=s,this._id=37}encode(t){return t.uint(37)&&t.uint(this.id)&&t.string(this.rule)&&t.uint(this.index)}});i.set(37,I);const M=t(class{constructor(t,i){this.id=t,this.index=i,this._id=38}encode(t){return t.uint(38)&&t.uint(this.id)&&t.uint(this.index)}});i.set(38,M);const B=t(class{constructor(t,i,s,e,n,r,h){this.method=t,this.url=i,this.request=s,this.response=e,this.status=n,this.timestamp=r,this.duration=h,this._id=39}encode(t){return t.uint(39)&&t.string(this.method)&&t.string(this.url)&&t.string(this.request)&&t.string(this.response)&&t.uint(this.status)&&t.uint(this.timestamp)&&t.uint(this.duration)}});i.set(39,B);const L=t(class{constructor(t,i,s,e){this.name=t,this.duration=i,this.args=s,this.result=e,this._id=40}encode(t){return t.uint(40)&&t.string(this.name)&&t.uint(this.duration)&&t.string(this.args)&&t.string(this.result)}});i.set(40,L);const C=t(class{constructor(t,i){this.key=t,this.value=i,this._id=41}encode(t){return t.uint(41)&&t.string(this.key)&&t.string(this.value)}});i.set(41,C);const A=t(class{constructor(t){this.type=t,this._id=42}encode(t){return t.uint(42)&&t.string(this.type)}});i.set(42,A);const U=t(class{constructor(t,i,s){this.action=t,this.state=i,this.duration=s,this._id=44}encode(t){return t.uint(44)&&t.string(this.action)&&t.string(this.state)&&t.uint(this.duration)}});i.set(44,U);const N=t(class{constructor(t,i){this.mutation=t,this.state=i,this._id=45}encode(t){return t.uint(45)&&t.string(this.mutation)&&t.string(this.state)}});i.set(45,N);const R=t(class{constructor(t,i){this.type=t,this.payload=i,this._id=46}encode(t){return t.uint(46)&&t.string(this.type)&&t.string(this.payload)}});i.set(46,R);const O=t(class{constructor(t,i,s){this.action=t,this.state=i,this.duration=s,this._id=47}encode(t){return t.uint(47)&&t.string(this.action)&&t.string(this.state)&&t.uint(this.duration)}});i.set(47,O);const P=t(class{constructor(t,i,s,e){this.operationKind=t,this.operationName=i,this.variables=s,this.response=e,this._id=48}encode(t){return t.uint(48)&&t.string(this.operationKind)&&t.string(this.operationName)&&t.string(this.variables)&&t.string(this.response)}});i.set(48,P);const q=t(class{constructor(t,i,s,e){this.frames=t,this.ticks=i,this.totalJSHeapSize=s,this.usedJSHeapSize=e,this._id=49}encode(t){return t.uint(49)&&t.int(this.frames)&&t.int(this.ticks)&&t.uint(this.totalJSHeapSize)&&t.uint(this.usedJSHeapSize)}});i.set(49,q);const D=t(class{constructor(t,i,s,e,n,r,h,o){this.timestamp=t,this.duration=i,this.ttfb=s,this.headerSize=e,this.encodedBodySize=n,this.decodedBodySize=r,this.url=h,this.initiator=o,this._id=53}encode(t){return t.uint(53)&&t.uint(this.timestamp)&&t.uint(this.duration)&&t.uint(this.ttfb)&&t.uint(this.headerSize)&&t.uint(this.encodedBodySize)&&t.uint(this.decodedBodySize)&&t.string(this.url)&&t.string(this.initiator)}});i.set(53,D);const W=t(class{constructor(t,i){this.downlink=t,this.type=i,this._id=54}encode(t){return t.uint(54)&&t.uint(this.downlink)&&t.string(this.type)}});i.set(54,W);const H=t(class{constructor(t){this.hidden=t,this._id=55}encode(t){return t.uint(55)&&t.boolean(this.hidden)}});i.set(55,H);const J=t(class{constructor(t,i,s,e,n,r,h){this.timestamp=t,this.duration=i,this.context=s,this.containerType=e,this.containerSrc=n,this.containerId=r,this.containerName=h,this._id=59}encode(t){return t.uint(59)&&t.uint(this.timestamp)&&t.uint(this.duration)&&t.uint(this.context)&&t.uint(this.containerType)&&t.string(this.containerSrc)&&t.string(this.containerId)&&t.string(this.containerName)}});i.set(59,J);const F=t(class{constructor(t,i,s,e){this.id=t,this.name=i,this.value=s,this.baseURL=e,this._id=60}encode(t){return t.uint(60)&&t.uint(this.id)&&t.string(this.name)&&t.string(this.value)&&t.string(this.baseURL)}});i.set(60,F);const X=t(class{constructor(t,i,s){this.id=t,this.data=i,this.baseURL=s,this._id=61}encode(t){return t.uint(61)&&t.uint(this.id)&&t.string(this.data)&&t.string(this.baseURL)}});i.set(61,X);const G=t(class{constructor(t,i){this.type=t,this.value=i,this._id=63}encode(t){return t.uint(63)&&t.string(this.type)&&t.string(this.value)}});i.set(63,G);const K=t(class{constructor(t,i){this.name=t,this.payload=i,this._id=64}encode(t){return t.uint(64)&&t.string(this.name)&&t.string(this.payload)}});i.set(64,K);const j=t(class{constructor(){this._id=65}encode(t){return t.uint(65)}});i.set(65,j);const Q=t(class{constructor(t,i,s,e){this.id=t,this.rule=i,this.index=s,this.baseURL=e,this._id=67}encode(t){return t.uint(67)&&t.uint(this.id)&&t.string(this.rule)&&t.uint(this.index)&&t.string(this.baseURL)}});i.set(67,Q);const V=t(class{constructor(t,i,s,e){this.id=t,this.hesitationTime=i,this.label=s,this.selector=e,this._id=69}encode(t){return t.uint(69)&&t.uint(this.id)&&t.uint(this.hesitationTime)&&t.string(this.label)&&t.string(this.selector)}});i.set(69,V);const Y=t(class{constructor(t,i){this.frameID=t,this.id=i,this._id=70}encode(t){return t.uint(70)&&t.uint(this.frameID)&&t.uint(this.id)}});i.set(70,Y);class Z{constructor(t,i,s,e=10,n=1e3){this.onUnauthorised=i,this.onFailure=s,this.MAX_ATTEMPTS_COUNT=e,this.ATTEMPT_TIMEOUT=n,this.attemptsCount=0,this.busy=!1,this.queue=[],this.token=null,this.ingestURL=t+"/v1/web/i"}authorise(t){this.token=t}push(t){this.busy||!this.token?this.queue.push(t):this.sendBatch(t)}retry(t){this.attemptsCount>=this.MAX_ATTEMPTS_COUNT?this.onFailure():(this.attemptsCount++,setTimeout(()=>this.sendBatch(t),this.ATTEMPT_TIMEOUT*this.attemptsCount))}sendBatch(t){this.busy=!0,fetch(this.ingestURL,{body:t,method:"POST",headers:{Authorization:"Bearer "+this.token},keepalive:t.length<65536}).then(i=>{if(401===i.status)return this.busy=!1,void this.onUnauthorised();if(i.status>=400)return void this.retry(t);this.attemptsCount=0;const s=this.queue.shift();s?this.sendBatch(s):this.busy=!1}).catch(i=>{console.warn("OpenReplay:",i),this.retry(t)})}clean(){this.queue.length=0}}const tt="function"==typeof TextEncoder?new TextEncoder:{encode(t){const i=t.length,s=new Uint8Array(3*i);let e=-1;for(var n=0,r=0,h=0;h!==i;){if(n=t.charCodeAt(h),h+=1,n>=55296&&n<=56319){if(h===i){s[e+=1]=239,s[e+=1]=191,s[e+=1]=189;break}if(!((r=t.charCodeAt(h))>=56320&&r<=57343)){s[e+=1]=239,s[e+=1]=191,s[e+=1]=189;continue}if(h+=1,(n=1024*(n-55296)+r-56320+65536)>65535){s[e+=1]=240|n>>>18,s[e+=1]=128|n>>>12&63,s[e+=1]=128|n>>>6&63,s[e+=1]=128|63&n;continue}}n<=127?s[e+=1]=0|n:n<=2047?(s[e+=1]=192|n>>>6,s[e+=1]=128|63&n):(s[e+=1]=224|n>>>12,s[e+=1]=128|n>>>6&63,s[e+=1]=128|63&n)}return s.subarray(0,e+1)}};class it{constructor(t){this.size=t,this.offset=0,this.checkpointOffset=0,this.data=new Uint8Array(t)}checkpoint(){this.checkpointOffset=this.offset}isEmpty(){return 0===this.offset}boolean(t){return this.data[this.offset++]=+t,this.offset<=this.size}uint(t){for((t<0||t>Number.MAX_SAFE_INTEGER)&&(t=0);t>=128;)this.data[this.offset++]=t%256|128,t=Math.floor(t/128);return this.data[this.offset++]=t,this.offset<=this.size}int(t){return t=Math.round(t),this.uint(t>=0?2*t:-2*t-1)}string(t){const i=tt.encode(t),s=i.byteLength;return!(!this.uint(s)||this.offset+s>this.size)&&(this.data.set(i,this.offset),this.offset+=s,!0)}reset(){this.offset=0,this.checkpointOffset=0}flush(){const t=this.data.slice(0,this.checkpointOffset);return this.reset(),t}}class st{constructor(t,i,s){this.pageNo=t,this.timestamp=i,this.onBatch=s,this.nextIndex=0,this.beaconSize=2e5,this.writer=new it(this.beaconSize),this.isEmpty=!0,this.beaconSizeLimit=1e6,this.prepareBatchMeta()}prepareBatchMeta(){return new s(this.pageNo,this.nextIndex,this.timestamp).encode(this.writer)}setBeaconSizeLimit(t){this.beaconSizeLimit=t}writeMessage(t){if(t instanceof e&&(this.timestamp=t.timestamp),!t.encode(this.writer))for(this.isEmpty||(this.onBatch(this.writer.flush()),this.prepareBatchMeta());!t.encode(this.writer);){if(this.beaconSize===this.beaconSizeLimit)return console.warn("OpenReplay: beacon size overflow. Skipping large message."),this.writer.reset(),this.prepareBatchMeta(),void(this.isEmpty=!0);this.beaconSize=Math.min(2*this.beaconSize,this.beaconSizeLimit),this.writer=new it(this.beaconSize),this.prepareBatchMeta()}this.writer.checkpoint(),this.nextIndex++,this.isEmpty=!1}finaliseBatch(){this.isEmpty||(this.onBatch(this.writer.flush()),this.prepareBatchMeta(),this.isEmpty=!0)}clean(){this.writer.reset()}}let et=null,nt=null;function rt(){nt&&nt.finaliseBatch()}function ht(){null!==ct&&(clearInterval(ct),ct=null),nt&&(nt.clean(),nt=null)}let ot,ct=null;self.onmessage=({data:t})=>{if(null!=t){if("stop"===t)return rt(),void ht();if(Array.isArray(t)){if(!nt)throw new Error("WebWorker: writer not initialised.");const s=nt;t.forEach(t=>{const e=new(i.get(t._id));Object.assign(e,t),e instanceof H&&(e.hidden?ot=setTimeout(()=>self.postMessage("restart"),18e5):clearTimeout(ot)),s.writeMessage(e)})}else{if("start"===t.type)return et=new Z(t.ingestPoint,()=>{self.postMessage("restart")},()=>{et&&(et.clean(),et=null),ht(),self.postMessage("failed")},t.connAttemptCount,t.connAttemptGap),nt=new st(t.pageNo,t.timestamp,t=>et&&et.push(t)),void(null===ct&&(ct=setInterval(rt,1e4)));if("auth"===t.type){if(!et)throw new Error("WebWorker: sender not initialised. Recieved auth.");if(!nt)throw new Error("WebWorker: writer not initialised. Recieved auth.");return et.authorise(t.token),void(t.beaconSizeLimit&&nt.setBeaconSizeLimit(t.beaconSizeLimit))}}}else rt()};
         return {
-            userUUID: localStorage.getItem(this.options.local_uuid_key),
+            userUUID: this.localStorage.getItem(this.options.local_uuid_key),
             projectKey: this.projectKey,
@@ -182,3 +186,3 @@ revID: this.revID,
     getSessionToken() {
-        const token = sessionStorage.getItem(this.options.session_token_key);
+        const token = this.sessionStorage.getItem(this.options.session_token_key);
         if (token !== null) {
@@ -225,6 +229,6 @@ return token;
         if (flag) {
-            sessionStorage.setItem(this.options.session_reset_key, 't');
+            this.sessionStorage.setItem(this.options.session_reset_key, 't');
         }
         else {
-            sessionStorage.removeItem(this.options.session_reset_key);
+            this.sessionStorage.removeItem(this.options.session_reset_key);
         }
@@ -241,3 +245,3 @@ }
         let pageNo = 0;
-        const pageNoStr = sessionStorage.getItem(this.options.session_pageno_key);
+        const pageNoStr = this.sessionStorage.getItem(this.options.session_pageno_key);
         if (pageNoStr != null) {
@@ -247,3 +251,3 @@ pageNo = parseInt(pageNoStr);
         }
-        sessionStorage.setItem(this.options.session_pageno_key, pageNo.toString());
+        this.sessionStorage.setItem(this.options.session_pageno_key, pageNo.toString());
         const startInfo = this.getStartInfo();
@@ -259,4 +263,4 @@ const startWorkerMsg = {
         this.worker.postMessage(startWorkerMsg); // brings delay of 10th ms?
-        const sReset = sessionStorage.getItem(this.options.session_reset_key);
-        sessionStorage.removeItem(this.options.session_reset_key);
+        const sReset = this.sessionStorage.getItem(this.options.session_reset_key);
+        this.sessionStorage.removeItem(this.options.session_reset_key);
         return window.fetch(this.options.ingestPoint + '/v1/web/start', {
@@ -267,3 +271,3 @@ method: 'POST',
             },
-            body: JSON.stringify(Object.assign(Object.assign({}, startInfo), { userID: startOpts.userID || this.session.getInfo().userID, token: sessionStorage.getItem(this.options.session_token_key), deviceMemory,
+            body: JSON.stringify(Object.assign(Object.assign({}, startInfo), { userID: startOpts.userID || this.session.getInfo().userID, token: this.sessionStorage.getItem(this.options.session_token_key), deviceMemory,
                 jsHeapSizeLimit, reset: startOpts.forceNew || sReset !== null })),
@@ -291,4 +295,4 @@ })
             }
-            sessionStorage.setItem(this.options.session_token_key, token);
-            localStorage.setItem(this.options.local_uuid_key, userUUID);
+            this.sessionStorage.setItem(this.options.session_token_key, token);
+            this.localStorage.setItem(this.options.local_uuid_key, userUUID);
             this.session.update(Object.assign({ sessionID }, startOpts));
@@ -314,3 +318,3 @@ this.activityState = ActivityState.Active;
             .catch(reason => {
-            sessionStorage.removeItem(this.options.session_token_key);
+            this.sessionStorage.removeItem(this.options.session_token_key);
             this.stop();
@@ -317,0 +321,0 @@ if (reason === CANCELED) {

lib/app/nodes.d.ts

@@ -10,3 +10,3 @@ declare type NodeCallback = (node: Node) => void;
     attachElementListener(type: string, node: Element, elementListener: EventListener): void;
-    registerNode(node: Node): [number, boolean];
+    registerNode(node: Node): [id: number, isNew: boolean];
     unregisterNode(node: Node): number | undefined;
@@ -13,0 +13,0 @@ callNodeCallbacks(node: Node): void;

lib/app/observer/observer.d.ts

@@ -7,7 +7,7 @@ import App from "../index.js";
     private readonly commited;
-    private readonly recents;
-    private readonly myNodes;
     private readonly indexes;
     private readonly attributesList;
     private readonly textSet;
+    private readonly newSet;
+    private readonly affectedSet;
     constructor(app: App, isTopContext?: boolean);
@@ -14,0 +14,0 @@ private clear;

lib/app/observer/observer.js

 import { RemoveNodeAttribute, SetNodeAttribute, SetNodeAttributeURLBased, SetCSSDataURLBased, SetNodeData, CreateTextNode, CreateElementNode, MoveNode, RemoveNode, } from "../../common/messages.js";
-import { isInstance, inDocument } from "../context.js";
-function isSVGElement(node) {
-    return node.namespaceURI === 'http://www.w3.org/2000/svg';
-}
+import { isRootNode, isTextNode, isElementNode, isSVGElement, hasTag, } from "../guards.js";
 function isIgnored(node) {
-    if (isInstance(node, Text)) {
+    if (isTextNode(node)) {
         return false;
     }
-    if (!isInstance(node, Element)) {
+    if (!isElementNode(node)) {
         return true;
@@ -25,5 +22,2 @@ }
 }
-function isRootNode(node) {
-    return isInstance(node, Document) || isInstance(node, ShadowRoot);
-}
 function isObservable(node) {
@@ -40,7 +34,7 @@ if (isRootNode(node)) {
         this.commited = [];
-        this.recents = [];
-        this.myNodes = [];
         this.indexes = [];
         this.attributesList = [];
         this.textSet = new Set();
+        this.newSet = new Set();
+        this.affectedSet = new Set();
         this.observer = new MutationObserver(this.app.safe((mutations) => {
@@ -50,3 +44,3 @@ for (const mutation of mutations) {
                 const type = mutation.type;
-                if (!isObservable(target) || !inDocument(target)) {
+                if (!isObservable(target) /*|| !inDocument() */) {
                     continue;
@@ -56,2 +50,5 @@ }
                     for (let i = 0; i < mutation.removedNodes.length; i++) {
+                        // TODO:  handle node removal separately from binding. 
+                        // Node removals should go first in the commit. 
+                        // To check: MoveNode and other possible unbinding behaviours 
                         this.bindTree(mutation.removedNodes[i]);
@@ -68,5 +65,2 @@ }
                 }
-                if (id >= this.recents.length) { // TODO: something more convinient
-                    this.recents[id] = undefined;
-                }
                 if (type === 'attributes') {
@@ -82,2 +76,3 @@ const name = mutation.attributeName;
                     attr.add(name);
+                    this.affectedSet.add(id);
                     continue;
@@ -87,2 +82,3 @@ }
                     this.textSet.add(id);
+                    this.affectedSet.add(id);
                     continue;
@@ -96,6 +92,7 @@ }
         this.commited.length = 0;
-        this.recents.length = 0;
         this.indexes.length = 1;
         this.attributesList.length = 0;
         this.textSet.clear();
+        this.newSet.clear();
+        this.affectedSet.clear();
     }
@@ -130,3 +127,3 @@ sendNodeAttribute(id, node, name, value) {
         if (name === 'value' &&
-            isInstance(node, HTMLInputElement) &&
+            hasTag(node, "INPUT") &&
             node.type !== 'button' &&
@@ -141,3 +138,3 @@ node.type !== 'reset' &&
         }
-        if (name === 'style' || name === 'href' && isInstance(node, HTMLLinkElement)) {
+        if (name === 'style' || name === 'href' && hasTag(node, "LINK")) {
             this.app.send(new SetNodeAttributeURLBased(id, name, value, this.app.getBaseHref()));
@@ -152,3 +149,3 @@ return;
     sendNodeData(id, parentElement, data) {
-        if (isInstance(parentElement, HTMLStyleElement) || isInstance(parentElement, SVGStyleElement)) {
+        if (hasTag(parentElement, "STYLE")) {
             this.app.send(new SetCSSDataURLBased(id, data, this.app.getBaseHref()));
@@ -161,6 +158,7 @@ return;
     bindNode(node) {
-        const r = this.app.nodes.registerNode(node);
-        const id = r[0];
-        this.recents[id] = r[1] || this.recents[id] || false;
-        this.myNodes[id] = true;
+        const [id, isNew] = this.app.nodes.registerNode(node);
+        if (isNew) {
+            this.newSet.add(id);
+        }
+        this.affectedSet.add(id);
     }
@@ -185,3 +183,4 @@ bindTree(node) {
         const id = this.app.nodes.unregisterNode(node);
-        if (id !== undefined && this.recents[id] === false) {
+        //    if (id !== undefined && this.recents[id] === false) { // In the old version it === flase when bindNode() was called on node but it was not new
+        if (id !== undefined && !this.newSet.has(id) && this.affectedSet.has(id)) { // Unbinding logic should be simplified. Node removals should go first.
             this.app.send(new RemoveNode(id));
@@ -199,3 +198,3 @@ }
         // TODO: Clean the logic (though now it workd fine) 
-        if (!isInstance(node, HTMLHtmlElement) || !this.isTopContext) {
+        if (!hasTag(node, "HTML") || !this.isTopContext) {
             if (parent === null) {
@@ -227,5 +226,5 @@ this.unbindNode(node);
         if (sibling === null) {
-            this.indexes[id] = 0; //
+            this.indexes[id] = 0;
         }
-        const isNew = this.recents[id];
+        const isNew = this.newSet.has(id);
         const index = this.indexes[id];
@@ -236,3 +235,3 @@ if (index === undefined) {
         if (isNew === true) {
-            if (isInstance(node, Element)) {
+            if (isElementNode(node)) {
                 if (parentID !== undefined) {
@@ -246,3 +245,3 @@ this.app.send(new CreateElementNode(id, parentID, index, node.tagName, isSVGElement(node)));
             }
-            else if (isInstance(node, Text)) {
+            else if (isTextNode(node)) {
                 // for text node id != 0, hence parentID !== undefined and parent is Element
@@ -255,2 +254,3 @@ this.app.send(new CreateTextNode(id, parentID, index));
         if (isNew === false && parentID !== undefined) {
+            // does this happen a lot?
             this.app.send(new MoveNode(id, parentID, index));
@@ -260,3 +260,3 @@ }
         if (attr !== undefined) {
-            if (!isInstance(node, Element)) {
+            if (!isElementNode(node)) {
                 throw 'commitNode: node is not an element';
@@ -269,3 +269,3 @@ }
         if (this.textSet.has(id)) {
-            if (!isInstance(node, Text)) {
+            if (!isTextNode(node)) {
                 throw 'commitNode: node is not a text';
@@ -291,15 +291,8 @@ }
         let node;
-        for (let id = 0; id < this.recents.length; id++) {
-            // TODO: make things/logic nice here.
-            // commit required in any case if recents[id] true or false (in case of unbinding) or undefined (in case of attr change).
-            // Possible solution: separate new node commit (recents) and new attribute/move node commit
-            // Otherwise commitNode is called on each node, which might be a lot
-            if (!this.myNodes[id]) {
-                continue;
-            }
+        this.affectedSet.forEach(id => {
             this.commitNode(id);
-            if (this.recents[id] === true && (node = this.app.nodes.getNode(id))) {
+            if (this.newSet.has(id) && (node = this.app.nodes.getNode(id))) {
                 this.app.nodes.callNodeCallbacks(node);
             }
-        }
+        });
         this.clear();
@@ -324,4 +317,3 @@ }
         this.clear();
-        this.myNodes.length = 0;
     }
 }

lib/app/observer/top_observer.js

 import Observer from "./observer.js";
-import { isInstance } from "../context.js";
+import { isElementNode, hasTag, } from "../guards.js";
 import IFrameObserver from "./iframe_observer.js";
@@ -18,3 +18,3 @@ import ShadowRootObserver from "./shadow_root_observer.js";
         this.app.nodes.attachNodeCallback(node => {
-            if (isInstance(node, HTMLIFrameElement) &&
+            if (hasTag(node, "IFRAME") &&
                 ((this.options.captureIFrames && !hasOpenreplayAttribute(node, "obscured"))
@@ -27,3 +27,3 @@ || hasOpenreplayAttribute(node, "capture"))) {
         this.app.nodes.attachNodeCallback(node => {
-            if (isInstance(node, Element) && node.shadowRoot !== null) {
+            if (isElementNode(node) && node.shadowRoot !== null) {
                 this.handleShadowRoot(node.shadowRoot);
@@ -30,0 +30,0 @@ }

lib/app/sanitizer.js

 import { stars, hasOpenreplayAttribute } from "../utils.js";
-import { isInstance } from "./context.js";
+import { isElementNode } from "./guards.js";
 export default class Sanitizer {
@@ -14,3 +14,3 @@ constructor(app, options) {
         if (this.masked.has(parentID) ||
-            (isInstance(node, Element) && hasOpenreplayAttribute(node, 'masked'))) {
+            (isElementNode(node) && hasOpenreplayAttribute(node, 'masked'))) {
             this.masked.add(id);
@@ -17,0 +17,0 @@ }

lib/index.js

@@ -126,3 +126,3 @@ import App, { DEFAULT_INGEST_POINT } from "./app/index.js";
             req.send(JSON.stringify({
-                trackerVersion: '3.5.12',
+                trackerVersion: '3.5.13-beta.0',
                 projectKey: options.projectKey,
@@ -129,0 +129,0 @@ doNotTrack,

lib/modules/console.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export interface Options {
@@ -3,0 +3,0 @@ consoleMethods: Array<string> | null;

lib/modules/console.js

@@ -0,1 +1,2 @@
+import { hasTag } from "../app/guards.js";
 import { IN_BROWSER } from "../utils.js";
@@ -116,3 +117,3 @@ import { ConsoleLog } from "../common/messages.js";
     app.nodes.attachNodeCallback(app.safe(node => {
-        if (node instanceof HTMLIFrameElement) {
+        if (hasTag(node, "IFRAME")) { // TODO: newContextCallback
             let context = node.contentWindow;
@@ -119,0 +120,0 @@ if (context) {

lib/modules/cssrules.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App | null): void;

lib/modules/cssrules.js

 import { CSSInsertRuleURLBased, CSSDeleteRule, TechnicalInfo } from "../common/messages.js";
+import { hasTag } from "../app/guards.js";
 export default function (app) {
@@ -33,8 +34,5 @@ if (app === null) {
     app.nodes.attachNodeCallback((node) => {
-        if (!(node instanceof HTMLStyleElement)) {
+        if (!hasTag(node, "STYLE") || !node.sheet) {
             return;
         }
-        if (!(node.sheet instanceof CSSStyleSheet)) {
-            return;
-        }
         if (node.textContent !== null && node.textContent.trim().length > 0) {
@@ -41,0 +39,0 @@ return; // Only fully virtual sheets maintained so far

lib/modules/exception.d.ts

@@ -0,3 +1,3 @@
+import type App from "../app/index.js";
 import type Message from "../common/messages.js";
-import App from "../app/index.js";
 export interface Options {
@@ -4,0 +4,0 @@ captureExceptions: boolean;

lib/modules/img.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

lib/modules/img.js

 import { timestamp, isURL } from "../utils.js";
 import { ResourceTiming, SetNodeAttributeURLBased, SetNodeAttribute } from "../common/messages.js";
+import { hasTag } from "../app/guards.js";
 const PLACEHOLDER_SRC = "https://static.openreplay.com/tracker/placeholder.jpeg";
@@ -50,3 +51,3 @@ export default function (app) {
     app.nodes.attachNodeCallback((node) => {
-        if (!(node instanceof HTMLImageElement)) {
+        if (!hasTag(node, "IMG")) {
             return;
@@ -53,0 +54,0 @@ }

lib/modules/input.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 declare type TextEditableElement = HTMLInputElement | HTMLTextAreaElement;
@@ -3,0 +3,0 @@ export declare function getInputLabel(node: TextEditableElement): string;

lib/modules/input.js

 import { normSpaces, IN_BROWSER, getLabelAttribute, hasOpenreplayAttribute, } from "../utils.js";
+import { hasTag } from "../app/guards.js";
 import { SetInputTarget, SetInputValue, SetInputChecked } from "../common/messages.js";
 function isTextEditable(node) {
-    if (node instanceof HTMLTextAreaElement) {
+    if (hasTag(node, "TEXTAREA")) {
         return true;
     }
-    if (!(node instanceof HTMLInputElement)) {
+    if (!hasTag(node, "INPUT")) {
         return false;
@@ -19,3 +20,3 @@ }
 function isCheckable(node) {
-    if (!(node instanceof HTMLInputElement)) {
+    if (!hasTag(node, "INPUT")) {
         return false;
@@ -30,3 +31,3 @@ }
         while ((p = p.parentNode) !== null) {
-            if (p instanceof HTMLLabelElement) {
+            if (hasTag(p, "LABEL")) {
                 return p;
@@ -43,3 +44,3 @@ }
         while ((p = p.parentNode) !== null) {
-            if (p instanceof HTMLLabelElement) {
+            if (hasTag(p, "LABEL")) {
                 return p;
@@ -73,3 +74,3 @@ }
         obscureInputEmails: true,
-        defaultInputMode: 0 /* Plain */,
+        defaultInputMode: 0 /* InputMode.Plain */,
     }, opts);
@@ -86,18 +87,18 @@ function sendInputTarget(id, node) {
         if (node.type === 'password' || hasOpenreplayAttribute(node, 'hidden')) {
-            inputMode = 2 /* Hidden */;
+            inputMode = 2 /* InputMode.Hidden */;
         }
         else if (hasOpenreplayAttribute(node, 'obscured') ||
-            (inputMode === 0 /* Plain */ &&
+            (inputMode === 0 /* InputMode.Plain */ &&
                 ((options.obscureInputNumbers && /\d\d\d\d/.test(value)) ||
                     (options.obscureInputEmails &&
                         (node.type === 'email' || !!~value.indexOf('@')))))) {
-            inputMode = 1 /* Obscured */;
+            inputMode = 1 /* InputMode.Obscured */;
         }
         let mask = 0;
         switch (inputMode) {
-            case 2 /* Hidden */:
+            case 2 /* InputMode.Hidden */:
                 mask = -1;
                 value = '';
                 break;
-            case 1 /* Obscured */:
+            case 1 /* InputMode.Obscured */:
                 mask = value.length;
@@ -152,3 +153,3 @@ value = '';
         // TODO: support multiple select (?): use selectedOptions; Need send target?
-        if (node instanceof HTMLSelectElement) {
+        if (hasTag(node, "SELECT")) {
             sendInputValue(id, node);
@@ -155,0 +156,0 @@ app.attachEventListener(node, "change", () => {

lib/modules/longtasks.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

lib/modules/mouse.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

lib/modules/mouse.js

@@ -0,1 +1,2 @@
+import { hasTag, isSVGElement } from "../app/guards.js";
 import { normSpaces, hasOpenreplayAttribute, getLabelAttribute, } from "../utils.js";
@@ -50,3 +51,3 @@ import { MouseMove, MouseClick } from "../common/messages.js";
     }
-    if (target instanceof SVGElement) {
+    if (isSVGElement(target)) {
         let owner = target.ownerSVGElement;
@@ -81,3 +82,3 @@ while (owner !== null) {
         }
-        if (target instanceof HTMLInputElement) {
+        if (hasTag(target, "INPUT")) {
             return getInputLabel(target);
@@ -84,0 +85,0 @@ }

lib/modules/performance.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export declare const deviceMemory: number;
@@ -3,0 +3,0 @@ export declare const jsHeapSizeLimit: number;

lib/modules/scroll.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

lib/modules/scroll.js

@@ -23,7 +23,7 @@ import { SetViewportScroll, SetNodeScroll } from "../common/messages.js";
     });
-    app.nodes.attachNodeCallback(node => {
-        if (node instanceof Element && node.scrollLeft + node.scrollTop > 0) {
-            nodeScroll.set(node, [node.scrollLeft, node.scrollTop]);
-        }
-    });
+    // app.nodes.attachNodeCallback(node => {
+    //   if (isElementNode(node) && node.scrollLeft + node.scrollTop > 0) {
+    //     nodeScroll.set(node, [node.scrollLeft, node.scrollTop]);
+    //   }
+    // })
     app.attachEventListener(window, 'scroll', (e) => {
@@ -30,0 +30,0 @@ const target = e.target;

lib/modules/timing.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export interface Options {
@@ -3,0 +3,0 @@ captureResourceTimings: boolean;

lib/modules/timing.js

@@ -0,1 +1,2 @@
+import { hasTag } from "../app/guards.js";
 import { isURL } from "../utils.js";
@@ -10,3 +11,3 @@ import { ResourceTiming, PageLoadTiming, PageRenderTiming } from "../common/messages.js";
         let src = '';
-        if (element instanceof HTMLImageElement) {
+        if (hasTag(element, "IMG")) {
             src = element.currentSrc || element.src;
@@ -13,0 +14,0 @@ }

lib/modules/viewport.d.ts

@@ -1,2 +0,2 @@
-import App from "../app/index.js";
+import type App from "../app/index.js";
 export default function (app: App): void;

package.json

 {
   "name": "@openreplay/tracker",
   "description": "The OpenReplay tracker main package",
-  "version": "3.5.12",
+  "version": "3.5.13-beta.0",
   "keywords": [
@@ -6,0 +6,0 @@ "logging",

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decreased by-0.09%

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