dompurify - npm Package Compare versions

Comparing version 3.0.2 to 3.0.3

dist/purify.cjs.js

@@ -1,2 +0,2 @@
-/*! @license DOMPurify 3.0.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.2/LICENSE */
+/*! @license DOMPurify 3.0.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.3/LICENSE */
 
@@ -79,4 +79,6 @@ 'use strict';
 function addToSet(set, array, transformCaseFunc) {
-  transformCaseFunc = transformCaseFunc ? transformCaseFunc : stringToLowerCase;
+  var _transformCaseFunc;
 
+  transformCaseFunc = (_transformCaseFunc = transformCaseFunc) !== null && _transformCaseFunc !== void 0 ? _transformCaseFunc : stringToLowerCase;
+
   if (setPrototypeOf) {
@@ -154,3 +156,3 @@ // Make 'in' and truthy checks like Boolean(set.constructor)
 const svg$1 = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialgradient', 'rect', 'stop', 'style', 'switch', 'symbol', 'text', 'textpath', 'title', 'tref', 'tspan', 'view', 'vkern']);
-const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
+const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feDropShadow', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
 // We still need to know them so that we can do namespace
@@ -160,3 +162,3 @@ // checks properly in case one wants to add them to
 
-const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'fedropshadow', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
+const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
 const mathMl$1 = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover', 'mprescripts']); // Similarly to SVG, we want to know all MathML elements,
@@ -206,9 +208,9 @@ // even those that we disallow by default.
  * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory.
- * @param {Document} document The document object (to determine policy name suffix)
+ * @param {HTMLScriptElement} purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).
  * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types
- * are not supported).
+ * are not supported or creating the policy failed).
  */
 
 
-const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) {
+const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {
   if (typeof trustedTypes !== 'object' || typeof trustedTypes.createPolicy !== 'function') {
@@ -224,4 +226,4 @@ return null;
 
-  if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) {
-    suffix = document.currentScript.getAttribute(ATTR_NAME);
+  if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {
+    suffix = purifyHostElement.getAttribute(ATTR_NAME);
   }
@@ -261,3 +263,3 @@
 
-  DOMPurify.version = '3.0.2';
+  DOMPurify.version = '3.0.3';
   /**
@@ -278,2 +280,3 @@ * Array of elements that DOMPurify removed during sanitation.
   const originalDocument = window.document;
+  const currentScript = originalDocument.currentScript;
   let {
@@ -312,5 +315,4 @@ document
 
-  const trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, originalDocument);
-
-  const emptyHTML = trustedTypesPolicy ? trustedTypesPolicy.createHTML('') : '';
+  let trustedTypesPolicy;
+  let emptyHTML = '';
   const {
@@ -330,3 +332,3 @@ implementation,
 
-  DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && typeof implementation.createHTMLDocument !== 'undefined';
+  DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;
   const {
@@ -678,2 +680,27 @@ MUSTACHE_EXPR,
       delete FORBID_TAGS.tbody;
+    }
+
+    if (cfg.TRUSTED_TYPES_POLICY) {
+      if (typeof cfg.TRUSTED_TYPES_POLICY.createHTML !== 'function') {
+        throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createHTML" hook.');
+      }
+
+      if (typeof cfg.TRUSTED_TYPES_POLICY.createScriptURL !== 'function') {
+        throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createScriptURL" hook.');
+      } // Overwrite existing TrustedTypes policy.
+
+
+      trustedTypesPolicy = cfg.TRUSTED_TYPES_POLICY; // Sign local variables required by `sanitize`.
+
+      emptyHTML = trustedTypesPolicy.createHTML('');
+    } else {
+      // Uninitialized policy, attempt to initialize the internal dompurify policy.
+      if (trustedTypesPolicy === undefined) {
+        trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, currentScript);
+      } // If creating the internal policy succeeded sign internal variables.
+
+
+      if (trustedTypesPolicy !== null && typeof emptyHTML === 'string') {
+        emptyHTML = trustedTypesPolicy.createHTML('');
+      }
     } // Prevent further manipulation of configuration.
@@ -1115,5 +1142,5 @@ // Not available in IE8, Safari 5, etc.
 
-    } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (!value) ; else {
+    } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (value) {
       return false;
-    }
+    } else ;
 
@@ -1248,8 +1275,12 @@ return true;
             case 'TrustedHTML':
-              value = trustedTypesPolicy.createHTML(value);
-              break;
+              {
+                value = trustedTypesPolicy.createHTML(value);
+                break;
+              }
 
             case 'TrustedScriptURL':
-              value = trustedTypesPolicy.createScriptURL(value);
-              break;
+              {
+                value = trustedTypesPolicy.createScriptURL(value);
+                break;
+              }
           }
@@ -1347,6 +1378,3 @@ }
     if (typeof dirty !== 'string' && !_isNode(dirty)) {
-      // eslint-disable-next-line no-negated-condition
-      if (typeof dirty.toString !== 'function') {
-        throw typeErrorCreate('toString is not a function');
-      } else {
+      if (typeof dirty.toString === 'function') {
         dirty = dirty.toString();
@@ -1357,2 +1385,4 @@
         }
+      } else {
+        throw typeErrorCreate('toString is not a function');
       }
@@ -1359,0 +1389,0 @@ }

dist/purify.es.js

@@ -1,2 +0,2 @@
-/*! @license DOMPurify 3.0.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.2/LICENSE */
+/*! @license DOMPurify 3.0.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.3/LICENSE */
 
@@ -77,4 +77,6 @@ const {
 function addToSet(set, array, transformCaseFunc) {
-  transformCaseFunc = transformCaseFunc ? transformCaseFunc : stringToLowerCase;
+  var _transformCaseFunc;
 
+  transformCaseFunc = (_transformCaseFunc = transformCaseFunc) !== null && _transformCaseFunc !== void 0 ? _transformCaseFunc : stringToLowerCase;
+
   if (setPrototypeOf) {
@@ -152,3 +154,3 @@ // Make 'in' and truthy checks like Boolean(set.constructor)
 const svg$1 = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialgradient', 'rect', 'stop', 'style', 'switch', 'symbol', 'text', 'textpath', 'title', 'tref', 'tspan', 'view', 'vkern']);
-const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
+const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feDropShadow', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
 // We still need to know them so that we can do namespace
@@ -158,3 +160,3 @@ // checks properly in case one wants to add them to
 
-const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'fedropshadow', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
+const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
 const mathMl$1 = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover', 'mprescripts']); // Similarly to SVG, we want to know all MathML elements,
@@ -204,9 +206,9 @@ // even those that we disallow by default.
  * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory.
- * @param {Document} document The document object (to determine policy name suffix)
+ * @param {HTMLScriptElement} purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).
  * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types
- * are not supported).
+ * are not supported or creating the policy failed).
  */
 
 
-const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) {
+const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {
   if (typeof trustedTypes !== 'object' || typeof trustedTypes.createPolicy !== 'function') {
@@ -222,4 +224,4 @@ return null;
 
-  if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) {
-    suffix = document.currentScript.getAttribute(ATTR_NAME);
+  if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {
+    suffix = purifyHostElement.getAttribute(ATTR_NAME);
   }
@@ -259,3 +261,3 @@
 
-  DOMPurify.version = '3.0.2';
+  DOMPurify.version = '3.0.3';
   /**
@@ -276,2 +278,3 @@ * Array of elements that DOMPurify removed during sanitation.
   const originalDocument = window.document;
+  const currentScript = originalDocument.currentScript;
   let {
@@ -310,5 +313,4 @@ document
 
-  const trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, originalDocument);
-
-  const emptyHTML = trustedTypesPolicy ? trustedTypesPolicy.createHTML('') : '';
+  let trustedTypesPolicy;
+  let emptyHTML = '';
   const {
@@ -328,3 +330,3 @@ implementation,
 
-  DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && typeof implementation.createHTMLDocument !== 'undefined';
+  DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;
   const {
@@ -676,2 +678,27 @@ MUSTACHE_EXPR,
       delete FORBID_TAGS.tbody;
+    }
+
+    if (cfg.TRUSTED_TYPES_POLICY) {
+      if (typeof cfg.TRUSTED_TYPES_POLICY.createHTML !== 'function') {
+        throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createHTML" hook.');
+      }
+
+      if (typeof cfg.TRUSTED_TYPES_POLICY.createScriptURL !== 'function') {
+        throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createScriptURL" hook.');
+      } // Overwrite existing TrustedTypes policy.
+
+
+      trustedTypesPolicy = cfg.TRUSTED_TYPES_POLICY; // Sign local variables required by `sanitize`.
+
+      emptyHTML = trustedTypesPolicy.createHTML('');
+    } else {
+      // Uninitialized policy, attempt to initialize the internal dompurify policy.
+      if (trustedTypesPolicy === undefined) {
+        trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, currentScript);
+      } // If creating the internal policy succeeded sign internal variables.
+
+
+      if (trustedTypesPolicy !== null && typeof emptyHTML === 'string') {
+        emptyHTML = trustedTypesPolicy.createHTML('');
+      }
     } // Prevent further manipulation of configuration.
@@ -1113,5 +1140,5 @@ // Not available in IE8, Safari 5, etc.
 
-    } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (!value) ; else {
+    } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (value) {
       return false;
-    }
+    } else ;
 
@@ -1246,8 +1273,12 @@ return true;
             case 'TrustedHTML':
-              value = trustedTypesPolicy.createHTML(value);
-              break;
+              {
+                value = trustedTypesPolicy.createHTML(value);
+                break;
+              }
 
             case 'TrustedScriptURL':
-              value = trustedTypesPolicy.createScriptURL(value);
-              break;
+              {
+                value = trustedTypesPolicy.createScriptURL(value);
+                break;
+              }
           }
@@ -1345,6 +1376,3 @@ }
     if (typeof dirty !== 'string' && !_isNode(dirty)) {
-      // eslint-disable-next-line no-negated-condition
-      if (typeof dirty.toString !== 'function') {
-        throw typeErrorCreate('toString is not a function');
-      } else {
+      if (typeof dirty.toString === 'function') {
         dirty = dirty.toString();
@@ -1355,2 +1383,4 @@
         }
+      } else {
+        throw typeErrorCreate('toString is not a function');
       }
@@ -1357,0 +1387,0 @@ }

dist/purify.js

@@ -1,2 +0,2 @@
-/*! @license DOMPurify 3.0.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.2/LICENSE */
+/*! @license DOMPurify 3.0.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.3/LICENSE */
 
@@ -83,4 +83,6 @@ (function (global, factory) {
   function addToSet(set, array, transformCaseFunc) {
-    transformCaseFunc = transformCaseFunc ? transformCaseFunc : stringToLowerCase;
+    var _transformCaseFunc;
 
+    transformCaseFunc = (_transformCaseFunc = transformCaseFunc) !== null && _transformCaseFunc !== void 0 ? _transformCaseFunc : stringToLowerCase;
+
     if (setPrototypeOf) {
@@ -158,3 +160,3 @@ // Make 'in' and truthy checks like Boolean(set.constructor)
   const svg$1 = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialgradient', 'rect', 'stop', 'style', 'switch', 'symbol', 'text', 'textpath', 'title', 'tref', 'tspan', 'view', 'vkern']);
-  const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
+  const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feDropShadow', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.
   // We still need to know them so that we can do namespace
@@ -164,3 +166,3 @@ // checks properly in case one wants to add them to
 
-  const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'fedropshadow', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
+  const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);
   const mathMl$1 = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover', 'mprescripts']); // Similarly to SVG, we want to know all MathML elements,
@@ -210,9 +212,9 @@ // even those that we disallow by default.
    * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory.
-   * @param {Document} document The document object (to determine policy name suffix)
+   * @param {HTMLScriptElement} purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).
    * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types
-   * are not supported).
+   * are not supported or creating the policy failed).
    */
 
 
-  const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) {
+  const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {
     if (typeof trustedTypes !== 'object' || typeof trustedTypes.createPolicy !== 'function') {
@@ -228,4 +230,4 @@ return null;
 
-    if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) {
-      suffix = document.currentScript.getAttribute(ATTR_NAME);
+    if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {
+      suffix = purifyHostElement.getAttribute(ATTR_NAME);
     }
@@ -265,3 +267,3 @@
 
-    DOMPurify.version = '3.0.2';
+    DOMPurify.version = '3.0.3';
     /**
@@ -282,2 +284,3 @@ * Array of elements that DOMPurify removed during sanitation.
     const originalDocument = window.document;
+    const currentScript = originalDocument.currentScript;
     let {
@@ -316,5 +319,4 @@ document
 
-    const trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, originalDocument);
-
-    const emptyHTML = trustedTypesPolicy ? trustedTypesPolicy.createHTML('') : '';
+    let trustedTypesPolicy;
+    let emptyHTML = '';
     const {
@@ -334,3 +336,3 @@ implementation,
 
-    DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && typeof implementation.createHTMLDocument !== 'undefined';
+    DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;
     const {
@@ -682,2 +684,27 @@ MUSTACHE_EXPR,
         delete FORBID_TAGS.tbody;
+      }
+
+      if (cfg.TRUSTED_TYPES_POLICY) {
+        if (typeof cfg.TRUSTED_TYPES_POLICY.createHTML !== 'function') {
+          throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createHTML" hook.');
+        }
+
+        if (typeof cfg.TRUSTED_TYPES_POLICY.createScriptURL !== 'function') {
+          throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createScriptURL" hook.');
+        } // Overwrite existing TrustedTypes policy.
+
+
+        trustedTypesPolicy = cfg.TRUSTED_TYPES_POLICY; // Sign local variables required by `sanitize`.
+
+        emptyHTML = trustedTypesPolicy.createHTML('');
+      } else {
+        // Uninitialized policy, attempt to initialize the internal dompurify policy.
+        if (trustedTypesPolicy === undefined) {
+          trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, currentScript);
+        } // If creating the internal policy succeeded sign internal variables.
+
+
+        if (trustedTypesPolicy !== null && typeof emptyHTML === 'string') {
+          emptyHTML = trustedTypesPolicy.createHTML('');
+        }
       } // Prevent further manipulation of configuration.
@@ -1119,5 +1146,5 @@ // Not available in IE8, Safari 5, etc.
 
-      } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (!value) ; else {
+      } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (value) {
         return false;
-      }
+      } else ;
 
@@ -1252,8 +1279,12 @@ return true;
               case 'TrustedHTML':
-                value = trustedTypesPolicy.createHTML(value);
-                break;
+                {
+                  value = trustedTypesPolicy.createHTML(value);
+                  break;
+                }
 
               case 'TrustedScriptURL':
-                value = trustedTypesPolicy.createScriptURL(value);
-                break;
+                {
+                  value = trustedTypesPolicy.createScriptURL(value);
+                  break;
+                }
             }
@@ -1351,6 +1382,3 @@ }
       if (typeof dirty !== 'string' && !_isNode(dirty)) {
-        // eslint-disable-next-line no-negated-condition
-        if (typeof dirty.toString !== 'function') {
-          throw typeErrorCreate('toString is not a function');
-        } else {
+        if (typeof dirty.toString === 'function') {
           dirty = dirty.toString();
@@ -1361,2 +1389,4 @@
           }
+        } else {
+          throw typeErrorCreate('toString is not a function');
         }
@@ -1363,0 +1393,0 @@ }

dist/purify.min.js

@@ -1,3 +0,3 @@
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 //# sourceMappingURL=purify.min.js.map

package.json

@@ -93,3 +93,3 @@ {
     "rollup-plugin-terser": "^7.0.2",
-    "xo": "^0.48.0"
+    "xo": "^0.54.1"
   },
@@ -101,3 +101,3 @@ "resolutions": {
   "description": "DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else using Blink or WebKit). DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not.",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "directories": {
@@ -104,0 +104,0 @@ "test": "test"

README.md

@@ -9,3 +9,3 @@ # DOMPurify
 
-It's also very simple to use and get started with. DOMPurify was [started in February 2014](https://github.com/cure53/DOMPurify/commit/a630922616927373485e0e787ab19e73e3691b2b) and, meanwhile, has reached version **v3.0.2**.
+It's also very simple to use and get started with. DOMPurify was [started in February 2014](https://github.com/cure53/DOMPurify/commit/a630922616927373485e0e787ab19e73e3691b2b) and, meanwhile, has reached version **v3.0.3**.
 
@@ -295,2 +295,11 @@ DOMPurify is written in JavaScript and works in all modern browsers (Safari (10+), Opera (15+), Edge, Firefox and Chrome - as well as almost anything else using Blink, Gecko or WebKit). It doesn't break on MSIE or other legacy browsers. It simply does nothing.
 
+// use a provided Trusted Types policy
+var clean = DOMPurify.sanitize(dirty, {
+    // supplied policy must define createHTML and createScriptURL
+    TRUSTED_TYPES_POLICY: trustedTypes.createPolicy({
+        createHTML(s) { return s},
+        createScriptURL(s) { return s},
+    }
+});
+
 /**
@@ -306,4 +315,4 @@ * Influence how we sanitize
 // enforce strict DOM Clobbering protection via namespace isolation (default is false)
-// when enabled, isolates the namespace of named properties (i.e., `id` and `name` attributes) 
-// from JS variables by prefixing them with the string `user-content-` 
+// when enabled, isolates the namespace of named properties (i.e., `id` and `name` attributes)
+// from JS variables by prefixing them with the string `user-content-`
 var clean = DOMPurify.sanitize(dirty, {SANITIZE_NAMED_PROPS: true});
@@ -310,0 +319,0 @@

No alert changes

Improved metrics

Total package byte prevSize

702921

increased by1.65%

Lines of code

3983

increased by1.81%

Number of lines in readme file

426

increased by2.16%

No dependency changes