frontend/node_modules/dompurify/dist/purify.js

/*! @license DOMPurify 3.4.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.4.2/LICENSE */

(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.DOMPurify = factory());
})(this, (function () { 'use strict';

    const {
      entries,
      setPrototypeOf,
      isFrozen,
      getPrototypeOf,
      getOwnPropertyDescriptor
    } = Object;
    let {
      freeze,
      seal,
      create
    } = Object; // eslint-disable-line import/no-mutable-exports
    let {
      apply,
      construct
    } = typeof Reflect !== 'undefined' && Reflect;
    if (!freeze) {
      freeze = function freeze(x) {
        return x;
      };
    }
    if (!seal) {
      seal = function seal(x) {
        return x;
      };
    }
    if (!apply) {
      apply = function apply(func, thisArg) {
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
          args[_key - 2] = arguments[_key];
        }
        return func.apply(thisArg, args);
      };
    }
    if (!construct) {
      construct = function construct(Func) {
        for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }
        return new Func(...args);
      };
    }
    const arrayForEach = unapply(Array.prototype.forEach);
    const arrayLastIndexOf = unapply(Array.prototype.lastIndexOf);
    const arrayPop = unapply(Array.prototype.pop);
    const arrayPush = unapply(Array.prototype.push);
    const arraySplice = unapply(Array.prototype.splice);
    const arrayIsArray = Array.isArray;
    const stringToLowerCase = unapply(String.prototype.toLowerCase);
    const stringToString = unapply(String.prototype.toString);
    const stringMatch = unapply(String.prototype.match);
    const stringReplace = unapply(String.prototype.replace);
    const stringIndexOf = unapply(String.prototype.indexOf);
    const stringTrim = unapply(String.prototype.trim);
    const numberToString = unapply(Number.prototype.toString);
    const booleanToString = unapply(Boolean.prototype.toString);
    const bigintToString = typeof BigInt === 'undefined' ? null : unapply(BigInt.prototype.toString);
    const symbolToString = typeof Symbol === 'undefined' ? null : unapply(Symbol.prototype.toString);
    const objectHasOwnProperty = unapply(Object.prototype.hasOwnProperty);
    const objectToString = unapply(Object.prototype.toString);
    const regExpTest = unapply(RegExp.prototype.test);
    const typeErrorCreate = unconstruct(TypeError);
    /**
     * Creates a new function that calls the given function with a specified thisArg and arguments.
     *
     * @param func - The function to be wrapped and called.
     * @returns A new function that calls the given function with a specified thisArg and arguments.
     */
    function unapply(func) {
      return function (thisArg) {
        if (thisArg instanceof RegExp) {
          thisArg.lastIndex = 0;
        }
        for (var _len3 = arguments.length, args = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
          args[_key3 - 1] = arguments[_key3];
        }
        return apply(func, thisArg, args);
      };
    }
    /**
     * Creates a new function that constructs an instance of the given constructor function with the provided arguments.
     *
     * @param func - The constructor function to be wrapped and called.
     * @returns A new function that constructs an instance of the given constructor function with the provided arguments.
     */
    function unconstruct(Func) {
      return function () {
        for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
          args[_key4] = arguments[_key4];
        }
        return construct(Func, args);
      };
    }
    /**
     * Add properties to a lookup table
     *
     * @param set - The set to which elements will be added.
     * @param array - The array containing elements to be added to the set.
     * @param transformCaseFunc - An optional function to transform the case of each element before adding to the set.
     * @returns The modified set with added elements.
     */
    function addToSet(set, array) {
      let transformCaseFunc = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : stringToLowerCase;
      if (setPrototypeOf) {
        // Make 'in' and truthy checks like Boolean(set.constructor)
        // independent of any properties defined on Object.prototype.
        // Prevent prototype setters from intercepting set as a this value.
        setPrototypeOf(set, null);
      }
      if (!arrayIsArray(array)) {
        return set;
      }
      let l = array.length;
      while (l--) {
        let element = array[l];
        if (typeof element === 'string') {
          const lcElement = transformCaseFunc(element);
          if (lcElement !== element) {
            // Config presets (e.g. tags.js, attrs.js) are immutable.
            if (!isFrozen(array)) {
              array[l] = lcElement;
            }
            element = lcElement;
          }
        }
        set[element] = true;
      }
      return set;
    }
    /**
     * Clean up an array to harden against CSPP
     *
     * @param array - The array to be cleaned.
     * @returns The cleaned version of the array
     */
    function cleanArray(array) {
      for (let index = 0; index < array.length; index++) {
        const isPropertyExist = objectHasOwnProperty(array, index);
        if (!isPropertyExist) {
          array[index] = null;
        }
      }
      return array;
    }
    /**
     * Shallow clone an object
     *
     * @param object - The object to be cloned.
     * @returns A new object that copies the original.
     */
    function clone(object) {
      const newObject = create(null);
      for (const [property, value] of entries(object)) {
        const isPropertyExist = objectHasOwnProperty(object, property);
        if (isPropertyExist) {
          if (arrayIsArray(value)) {
            newObject[property] = cleanArray(value);
          } else if (value && typeof value === 'object' && value.constructor === Object) {
            newObject[property] = clone(value);
          } else {
            newObject[property] = value;
          }
        }
      }
      return newObject;
    }
    /**
     * Convert non-node values into strings without depending on direct property access.
     *
     * @param value - The value to stringify.
     * @returns A string representation of the provided value.
     */
    function stringifyValue(value) {
      switch (typeof value) {
        case 'string':
          {
            return value;
          }
        case 'number':
          {
            return numberToString(value);
          }
        case 'boolean':
          {
            return booleanToString(value);
          }
        case 'bigint':
          {
            return bigintToString ? bigintToString(value) : '0';
          }
        case 'symbol':
          {
            return symbolToString ? symbolToString(value) : 'Symbol()';
          }
        case 'undefined':
          {
            return objectToString(value);
          }
        case 'function':
        case 'object':
          {
            if (value === null) {
              return objectToString(value);
            }
            const valueAsRecord = value;
            const valueToString = lookupGetter(valueAsRecord, 'toString');
            if (typeof valueToString === 'function') {
              const stringified = valueToString(valueAsRecord);
              return typeof stringified === 'string' ? stringified : objectToString(stringified);
            }
            return objectToString(value);
          }
        default:
          {
            return objectToString(value);
          }
      }
    }
    /**
     * This method automatically checks if the prop is function or getter and behaves accordingly.
     *
     * @param object - The object to look up the getter function in its prototype chain.
     * @param prop - The property name for which to find the getter function.
     * @returns The getter function found in the prototype chain or a fallback function.
     */
    function lookupGetter(object, prop) {
      while (object !== null) {
        const desc = getOwnPropertyDescriptor(object, prop);
        if (desc) {
          if (desc.get) {
            return unapply(desc.get);
          }
          if (typeof desc.value === 'function') {
            return unapply(desc.value);
          }
        }
        object = getPrototypeOf(object);
      }
      function fallbackValue() {
        return null;
      }
      return fallbackValue;
    }
    function isRegex(value) {
      try {
        regExpTest(value, '');
        return true;
      } catch (_unused) {
        return false;
      }
    }

    const html$1 = freeze(['a', 'abbr', 'acronym', 'address', 'area', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 'big', 'blink', 'blockquote', 'body', 'br', 'button', 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', 'content', 'data', 'datalist', 'dd', 'decorator', 'del', 'details', 'dfn', 'dialog', 'dir', 'div', 'dl', 'dt', 'element', 'em', 'fieldset', 'figcaption', 'figure', 'font', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'main', 'map', 'mark', 'marquee', 'menu', 'menuitem', 'meter', 'nav', 'nobr', 'ol', 'optgroup', 'option', 'output', 'p', 'picture', 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'search', 'section', 'select', 'shadow', 'slot', 'small', 'source', 'spacer', 'span', 'strike', 'strong', 'style', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'time', 'tr', 'track', 'tt', 'u', 'ul', 'var', 'video', 'wbr']);
    const svg$1 = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'enterkeyhint', 'exportparts', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'inputmode', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'part', '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', '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
    // checks properly in case one wants to add them to
    // allow-list.
    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,
    // even those that we disallow by default.
    const mathMlDisallowed = freeze(['maction', 'maligngroup', 'malignmark', 'mlongdiv', 'mscarries', 'mscarry', 'msgroup', 'mstack', 'msline', 'msrow', 'semantics', 'annotation', 'annotation-xml', 'mprescripts', 'none']);
    const text = freeze(['#text']);

    const html = freeze(['accept', 'action', 'align', 'alt', 'autocapitalize', 'autocomplete', 'autopictureinpicture', 'autoplay', 'background', 'bgcolor', 'border', 'capture', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'controls', 'controlslist', 'coords', 'crossorigin', 'datetime', 'decoding', 'default', 'dir', 'disabled', 'disablepictureinpicture', 'disableremoteplayback', 'download', 'draggable', 'enctype', 'enterkeyhint', 'exportparts', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'inert', 'inputmode', 'integrity', 'ismap', 'kind', 'label', 'lang', 'list', 'loading', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'minlength', 'multiple', 'muted', 'name', 'nonce', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'part', 'pattern', 'placeholder', 'playsinline', 'popover', 'popovertarget', 'popovertargetaction', 'poster', 'preload', 'pubdate', 'radiogroup', 'readonly', 'rel', 'required', 'rev', 'reversed', 'role', 'rows', 'rowspan', 'spellcheck', 'scope', 'selected', 'shape', 'size', 'sizes', 'slot', 'span', 'srclang', 'start', 'src', 'srcset', 'step', 'style', 'summary', 'tabindex', 'title', 'translate', 'type', 'usemap', 'valign', 'value', 'width', 'wrap', 'xmlns']);
    const svg = freeze(['accent-height', 'accumulate', 'additive', 'alignment-baseline', 'amplitude', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', 'clippathunits', 'clip-path', 'clip-rule', 'color', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'cx', 'cy', 'd', 'dx', 'dy', 'diffuseconstant', 'direction', 'display', 'divisor', 'dur', 'edgemode', 'elevation', 'end', 'exponent', 'fill', 'fill-opacity', 'fill-rule', 'filter', 'filterunits', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'fx', 'fy', 'g1', 'g2', 'glyph-name', 'glyphref', 'gradientunits', 'gradienttransform', 'height', 'href', 'id', 'image-rendering', 'in', 'in2', 'intercept', 'k', 'k1', 'k2', 'k3', 'k4', 'kerning', 'keypoints', 'keysplines', 'keytimes', 'lang', 'lengthadjust', 'letter-spacing', 'kernelmatrix', 'kernelunitlength', 'lighting-color', 'local', 'marker-end', 'marker-mid', 'marker-start', 'markerheight', 'markerunits', 'markerwidth', 'maskcontentunits', 'maskunits', 'max', 'mask', 'mask-type', 'media', 'method', 'mode', 'min', 'name', 'numoctaves', 'offset', 'operator', 'opacity', 'order', 'orient', 'orientation', 'origin', 'overflow', 'paint-order', 'path', 'pathlength', 'patterncontentunits', 'patterntransform', 'patternunits', 'points', 'preservealpha', 'preserveaspectratio', 'primitiveunits', 'r', 'rx', 'ry', 'radius', 'refx', 'refy', 'repeatcount', 'repeatdur', 'restart', 'result', 'rotate', 'scale', 'seed', 'shape-rendering', 'slope', 'specularconstant', 'specularexponent', 'spreadmethod', 'startoffset', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'systemlanguage', 'tabindex', 'tablevalues', 'targetx', 'targety', 'transform', 'transform-origin', 'text-anchor', 'text-decoration', 'text-rendering', 'textlength', 'type', 'u1', 'u2', 'unicode', 'values', 'viewbox', 'visibility', 'version', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'width', 'word-spacing', 'wrap', 'writing-mode', 'xchannelselector', 'ychannelselector', 'x', 'x1', 'x2', 'xmlns', 'y', 'y1', 'y2', 'z', 'zoomandpan']);
    const mathMl = freeze(['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnalign', 'columnlines', 'columnspacing', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', 'encoding', 'fence', 'frame', 'height', 'href', 'id', 'largeop', 'length', 'linethickness', 'lquote', 'lspace', 'mathbackground', 'mathcolor', 'mathsize', 'mathvariant', 'maxsize', 'minsize', 'movablelimits', 'notation', 'numalign', 'open', 'rowalign', 'rowlines', 'rowspacing', 'rowspan', 'rspace', 'rquote', 'scriptlevel', 'scriptminsize', 'scriptsizemultiplier', 'selection', 'separator', 'separators', 'stretchy', 'subscriptshift', 'supscriptshift', 'symmetric', 'voffset', 'width', 'xmlns']);
    const xml = freeze(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']);

    // eslint-disable-next-line unicorn/better-regex
    const MUSTACHE_EXPR = seal(/\{\{[\w\W]*|[\w\W]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode
    const ERB_EXPR = seal(/<%[\w\W]*|[\w\W]*%>/gm);
    const TMPLIT_EXPR = seal(/\$\{[\w\W]*/gm); // eslint-disable-line unicorn/better-regex
    const DATA_ATTR = seal(/^data-[\-\w.\u00B7-\uFFFF]+$/); // eslint-disable-line no-useless-escape
    const ARIA_ATTR = seal(/^aria-[\-\w]+$/); // eslint-disable-line no-useless-escape
    const IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|sms|cid|xmpp|matrix):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i // eslint-disable-line no-useless-escape
    );
    const IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i);
    const ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205F\u3000]/g // eslint-disable-line no-control-regex
    );
    const DOCTYPE_NAME = seal(/^html$/i);
    const CUSTOM_ELEMENT = seal(/^[a-z][.\w]*(-[.\w]+)+$/i);

    var EXPRESSIONS = /*#__PURE__*/Object.freeze({
        __proto__: null,
        ARIA_ATTR: ARIA_ATTR,
        ATTR_WHITESPACE: ATTR_WHITESPACE,
        CUSTOM_ELEMENT: CUSTOM_ELEMENT,
        DATA_ATTR: DATA_ATTR,
        DOCTYPE_NAME: DOCTYPE_NAME,
        ERB_EXPR: ERB_EXPR,
        IS_ALLOWED_URI: IS_ALLOWED_URI,
        IS_SCRIPT_OR_DATA: IS_SCRIPT_OR_DATA,
        MUSTACHE_EXPR: MUSTACHE_EXPR,
        TMPLIT_EXPR: TMPLIT_EXPR
    });

    /* eslint-disable @typescript-eslint/indent */
    // https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
    const NODE_TYPE = {
      element: 1,
      text: 3,
      // Deprecated
      progressingInstruction: 7,
      comment: 8,
      document: 9};
    const getGlobal = function getGlobal() {
      return typeof window === 'undefined' ? null : window;
    };
    /**
     * Creates a no-op policy for internal use only.
     * Don't export this function outside this module!
     * @param trustedTypes The policy factory.
     * @param purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).
     * @return The policy created (or null, if Trusted Types
     * are not supported or creating the policy failed).
     */
    const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {
      if (typeof trustedTypes !== 'object' || typeof trustedTypes.createPolicy !== 'function') {
        return null;
      }
      // Allow the callers to control the unique policy name
      // by adding a data-tt-policy-suffix to the script element with the DOMPurify.
      // Policy creation with duplicate names throws in Trusted Types.
      let suffix = null;
      const ATTR_NAME = 'data-tt-policy-suffix';
      if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {
        suffix = purifyHostElement.getAttribute(ATTR_NAME);
      }
      const policyName = 'dompurify' + (suffix ? '#' + suffix : '');
      try {
        return trustedTypes.createPolicy(policyName, {
          createHTML(html) {
            return html;
          },
          createScriptURL(scriptUrl) {
            return scriptUrl;
          }
        });
      } catch (_) {
        // Policy creation failed (most likely another DOMPurify script has
        // already run). Skip creating the policy, as this will only cause errors
        // if TT are enforced.
        console.warn('TrustedTypes policy ' + policyName + ' could not be created.');
        return null;
      }
    };
    const _createHooksMap = function _createHooksMap() {
      return {
        afterSanitizeAttributes: [],
        afterSanitizeElements: [],
        afterSanitizeShadowDOM: [],
        beforeSanitizeAttributes: [],
        beforeSanitizeElements: [],
        beforeSanitizeShadowDOM: [],
        uponSanitizeAttribute: [],
        uponSanitizeElement: [],
        uponSanitizeShadowNode: []
      };
    };
    function createDOMPurify() {
      let window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal();
      const DOMPurify = root => createDOMPurify(root);
      DOMPurify.version = '3.4.2';
      DOMPurify.removed = [];
      if (!window || !window.document || window.document.nodeType !== NODE_TYPE.document || !window.Element) {
        // Not running in a browser, provide a factory function
        // so that you can pass your own Window
        DOMPurify.isSupported = false;
        return DOMPurify;
      }
      let {
        document
      } = window;
      const originalDocument = document;
      const currentScript = originalDocument.currentScript;
      const {
        DocumentFragment,
        HTMLTemplateElement,
        Node,
        Element,
        NodeFilter,
        NamedNodeMap = window.NamedNodeMap || window.MozNamedAttrMap,
        HTMLFormElement,
        DOMParser,
        trustedTypes
      } = window;
      const ElementPrototype = Element.prototype;
      const cloneNode = lookupGetter(ElementPrototype, 'cloneNode');
      const remove = lookupGetter(ElementPrototype, 'remove');
      const getNextSibling = lookupGetter(ElementPrototype, 'nextSibling');
      const getChildNodes = lookupGetter(ElementPrototype, 'childNodes');
      const getParentNode = lookupGetter(ElementPrototype, 'parentNode');
      // As per issue #47, the web-components registry is inherited by a
      // new document created via createHTMLDocument. As per the spec
      // (http://w3c.github.io/webcomponents/spec/custom/#creating-and-passing-registries)
      // a new empty registry is used when creating a template contents owner
      // document, so we use that as our parent document to ensure nothing
      // is inherited.
      if (typeof HTMLTemplateElement === 'function') {
        const template = document.createElement('template');
        if (template.content && template.content.ownerDocument) {
          document = template.content.ownerDocument;
        }
      }
      let trustedTypesPolicy;
      let emptyHTML = '';
      const {
        implementation,
        createNodeIterator,
        createDocumentFragment,
        getElementsByTagName
      } = document;
      const {
        importNode
      } = originalDocument;
      let hooks = _createHooksMap();
      /**
       * Expose whether this browser supports running the full DOMPurify.
       */
      DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;
      const {
        MUSTACHE_EXPR,
        ERB_EXPR,
        TMPLIT_EXPR,
        DATA_ATTR,
        ARIA_ATTR,
        IS_SCRIPT_OR_DATA,
        ATTR_WHITESPACE,
        CUSTOM_ELEMENT
      } = EXPRESSIONS;
      let {
        IS_ALLOWED_URI: IS_ALLOWED_URI$1
      } = EXPRESSIONS;
      /**
       * We consider the elements and attributes below to be safe. Ideally
       * don't add any new ones but feel free to remove unwanted ones.
       */
      /* allowed element names */
      let ALLOWED_TAGS = null;
      const DEFAULT_ALLOWED_TAGS = addToSet({}, [...html$1, ...svg$1, ...svgFilters, ...mathMl$1, ...text]);
      /* Allowed attribute names */
      let ALLOWED_ATTR = null;
      const DEFAULT_ALLOWED_ATTR = addToSet({}, [...html, ...svg, ...mathMl, ...xml]);
      /*
       * Configure how DOMPurify should handle custom elements and their attributes as well as customized built-in elements.
       * @property {RegExp|Function|null} tagNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any custom elements)
       * @property {RegExp|Function|null} attributeNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any attributes not on the allow list)
       * @property {boolean} allowCustomizedBuiltInElements allow custom elements derived from built-ins if they pass CUSTOM_ELEMENT_HANDLING.tagNameCheck. Default: `false`.
       */
      let CUSTOM_ELEMENT_HANDLING = Object.seal(create(null, {
        tagNameCheck: {
          writable: true,
          configurable: false,
          enumerable: true,
          value: null
        },
        attributeNameCheck: {
          writable: true,
          configurable: false,
          enumerable: true,
          value: null
        },
        allowCustomizedBuiltInElements: {
          writable: true,
          configurable: false,
          enumerable: true,
          value: false
        }
      }));
      /* Explicitly forbidden tags (overrides ALLOWED_TAGS/ADD_TAGS) */
      let FORBID_TAGS = null;
      /* Explicitly forbidden attributes (overrides ALLOWED_ATTR/ADD_ATTR) */
      let FORBID_ATTR = null;
      /* Config object to store ADD_TAGS/ADD_ATTR functions (when used as functions) */
      const EXTRA_ELEMENT_HANDLING = Object.seal(create(null, {
        tagCheck: {
          writable: true,
          configurable: false,
          enumerable: true,
          value: null
        },
        attributeCheck: {
          writable: true,
          configurable: false,
          enumerable: true,
          value: null
        }
      }));
      /* Decide if ARIA attributes are okay */
      let ALLOW_ARIA_ATTR = true;
      /* Decide if custom data attributes are okay */
      let ALLOW_DATA_ATTR = true;
      /* Decide if unknown protocols are okay */
      let ALLOW_UNKNOWN_PROTOCOLS = false;
      /* Decide if self-closing tags in attributes are allowed.
       * Usually removed due to a mXSS issue in jQuery 3.0 */
      let ALLOW_SELF_CLOSE_IN_ATTR = true;
      /* Output should be safe for common template engines.
       * This means, DOMPurify removes data attributes, mustaches and ERB
       */
      let SAFE_FOR_TEMPLATES = false;
      /* Output should be safe even for XML used within HTML and alike.
       * This means, DOMPurify removes comments when containing risky content.
       */
      let SAFE_FOR_XML = true;
      /* Decide if document with <html>... should be returned */
      let WHOLE_DOCUMENT = false;
      /* Track whether config is already set on this instance of DOMPurify. */
      let SET_CONFIG = false;
      /* Decide if all elements (e.g. style, script) must be children of
       * document.body. By default, browsers might move them to document.head */
      let FORCE_BODY = false;
      /* Decide if a DOM `HTMLBodyElement` should be returned, instead of a html
       * string (or a TrustedHTML object if Trusted Types are supported).
       * If `WHOLE_DOCUMENT` is enabled a `HTMLHtmlElement` will be returned instead
       */
      let RETURN_DOM = false;
      /* Decide if a DOM `DocumentFragment` should be returned, instead of a html
       * string  (or a TrustedHTML object if Trusted Types are supported) */
      let RETURN_DOM_FRAGMENT = false;
      /* Try to return a Trusted Type object instead of a string, return a string in
       * case Trusted Types are not supported  */
      let RETURN_TRUSTED_TYPE = false;
      /* Output should be free from DOM clobbering attacks?
       * This sanitizes markups named with colliding, clobberable built-in DOM APIs.
       */
      let SANITIZE_DOM = true;
      /* Achieve full DOM Clobbering protection by isolating the namespace of named
       * properties and JS variables, mitigating attacks that abuse the HTML/DOM spec rules.
       *
       * HTML/DOM spec rules that enable DOM Clobbering:
       *   - Named Access on Window (§7.3.3)
       *   - DOM Tree Accessors (§3.1.5)
       *   - Form Element Parent-Child Relations (§4.10.3)
       *   - Iframe srcdoc / Nested WindowProxies (§4.8.5)
       *   - HTMLCollection (§4.2.10.2)
       *
       * Namespace isolation is implemented by prefixing `id` and `name` attributes
       * with a constant string, i.e., `user-content-`
       */
      let SANITIZE_NAMED_PROPS = false;
      const SANITIZE_NAMED_PROPS_PREFIX = 'user-content-';
      /* Keep element content when removing element? */
      let KEEP_CONTENT = true;
      /* If a `Node` is passed to sanitize(), then performs sanitization in-place instead
       * of importing it into a new Document and returning a sanitized copy */
      let IN_PLACE = false;
      /* Allow usage of profiles like html, svg and mathMl */
      let USE_PROFILES = {};
      /* Tags to ignore content of when KEEP_CONTENT is true */
      let FORBID_CONTENTS = null;
      const DEFAULT_FORBID_CONTENTS = addToSet({}, ['annotation-xml', 'audio', 'colgroup', 'desc', 'foreignobject', 'head', 'iframe', 'math', 'mi', 'mn', 'mo', 'ms', 'mtext', 'noembed', 'noframes', 'noscript', 'plaintext', 'script', 'style', 'svg', 'template', 'thead', 'title', 'video', 'xmp']);
      /* Tags that are safe for data: URIs */
      let DATA_URI_TAGS = null;
      const DEFAULT_DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image', 'track']);
      /* Attributes safe for values like "javascript:" */
      let URI_SAFE_ATTRIBUTES = null;
      const DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'role', 'summary', 'title', 'value', 'style', 'xmlns']);
      const MATHML_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
      const SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
      const HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';
      /* Document namespace */
      let NAMESPACE = HTML_NAMESPACE;
      let IS_EMPTY_INPUT = false;
      /* Allowed XHTML+XML namespaces */
      let ALLOWED_NAMESPACES = null;
      const DEFAULT_ALLOWED_NAMESPACES = addToSet({}, [MATHML_NAMESPACE, SVG_NAMESPACE, HTML_NAMESPACE], stringToString);
      let MATHML_TEXT_INTEGRATION_POINTS = addToSet({}, ['mi', 'mo', 'mn', 'ms', 'mtext']);
      let HTML_INTEGRATION_POINTS = addToSet({}, ['annotation-xml']);
      // Certain elements are allowed in both SVG and HTML
      // namespace. We need to specify them explicitly
      // so that they don't get erroneously deleted from
      // HTML namespace.
      const COMMON_SVG_AND_HTML_ELEMENTS = addToSet({}, ['title', 'style', 'font', 'a', 'script']);
      /* Parsing of strict XHTML documents */
      let PARSER_MEDIA_TYPE = null;
      const SUPPORTED_PARSER_MEDIA_TYPES = ['application/xhtml+xml', 'text/html'];
      const DEFAULT_PARSER_MEDIA_TYPE = 'text/html';
      let transformCaseFunc = null;
      /* Keep a reference to config to pass to hooks */
      let CONFIG = null;
      /* Ideally, do not touch anything below this line */
      /* ______________________________________________ */
      const formElement = document.createElement('form');
      const isRegexOrFunction = function isRegexOrFunction(testValue) {
        return testValue instanceof RegExp || testValue instanceof Function;
      };
      /**
       * _parseConfig
       *
       * @param cfg optional config literal
       */
      // eslint-disable-next-line complexity
      const _parseConfig = function _parseConfig() {
        let cfg = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
        if (CONFIG && CONFIG === cfg) {
          return;
        }
        /* Shield configuration object from tampering */
        if (!cfg || typeof cfg !== 'object') {
          cfg = {};
        }
        /* Shield configuration object from prototype pollution */
        cfg = clone(cfg);
        PARSER_MEDIA_TYPE =
        // eslint-disable-next-line unicorn/prefer-includes
        SUPPORTED_PARSER_MEDIA_TYPES.indexOf(cfg.PARSER_MEDIA_TYPE) === -1 ? DEFAULT_PARSER_MEDIA_TYPE : cfg.PARSER_MEDIA_TYPE;
        // HTML tags and attributes are not case-sensitive, converting to lowercase. Keeping XHTML as is.
        transformCaseFunc = PARSER_MEDIA_TYPE === 'application/xhtml+xml' ? stringToString : stringToLowerCase;
        /* Set configuration parameters */
        ALLOWED_TAGS = objectHasOwnProperty(cfg, 'ALLOWED_TAGS') && arrayIsArray(cfg.ALLOWED_TAGS) ? addToSet({}, cfg.ALLOWED_TAGS, transformCaseFunc) : DEFAULT_ALLOWED_TAGS;
        ALLOWED_ATTR = objectHasOwnProperty(cfg, 'ALLOWED_ATTR') && arrayIsArray(cfg.ALLOWED_ATTR) ? addToSet({}, cfg.ALLOWED_ATTR, transformCaseFunc) : DEFAULT_ALLOWED_ATTR;
        ALLOWED_NAMESPACES = objectHasOwnProperty(cfg, 'ALLOWED_NAMESPACES') && arrayIsArray(cfg.ALLOWED_NAMESPACES) ? addToSet({}, cfg.ALLOWED_NAMESPACES, stringToString) : DEFAULT_ALLOWED_NAMESPACES;
        URI_SAFE_ATTRIBUTES = objectHasOwnProperty(cfg, 'ADD_URI_SAFE_ATTR') && arrayIsArray(cfg.ADD_URI_SAFE_ATTR) ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), cfg.ADD_URI_SAFE_ATTR, transformCaseFunc) : DEFAULT_URI_SAFE_ATTRIBUTES;
        DATA_URI_TAGS = objectHasOwnProperty(cfg, 'ADD_DATA_URI_TAGS') && arrayIsArray(cfg.ADD_DATA_URI_TAGS) ? addToSet(clone(DEFAULT_DATA_URI_TAGS), cfg.ADD_DATA_URI_TAGS, transformCaseFunc) : DEFAULT_DATA_URI_TAGS;
        FORBID_CONTENTS = objectHasOwnProperty(cfg, 'FORBID_CONTENTS') && arrayIsArray(cfg.FORBID_CONTENTS) ? addToSet({}, cfg.FORBID_CONTENTS, transformCaseFunc) : DEFAULT_FORBID_CONTENTS;
        FORBID_TAGS = objectHasOwnProperty(cfg, 'FORBID_TAGS') && arrayIsArray(cfg.FORBID_TAGS) ? addToSet({}, cfg.FORBID_TAGS, transformCaseFunc) : clone({});
        FORBID_ATTR = objectHasOwnProperty(cfg, 'FORBID_ATTR') && arrayIsArray(cfg.FORBID_ATTR) ? addToSet({}, cfg.FORBID_ATTR, transformCaseFunc) : clone({});
        USE_PROFILES = objectHasOwnProperty(cfg, 'USE_PROFILES') ? cfg.USE_PROFILES && typeof cfg.USE_PROFILES === 'object' ? clone(cfg.USE_PROFILES) : cfg.USE_PROFILES : false;
        ALLOW_ARIA_ATTR = cfg.ALLOW_ARIA_ATTR !== false; // Default true
        ALLOW_DATA_ATTR = cfg.ALLOW_DATA_ATTR !== false; // Default true
        ALLOW_UNKNOWN_PROTOCOLS = cfg.ALLOW_UNKNOWN_PROTOCOLS || false; // Default false
        ALLOW_SELF_CLOSE_IN_ATTR = cfg.ALLOW_SELF_CLOSE_IN_ATTR !== false; // Default true
        SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false
        SAFE_FOR_XML = cfg.SAFE_FOR_XML !== false; // Default true
        WHOLE_DOCUMENT = cfg.WHOLE_DOCUMENT || false; // Default false
        RETURN_DOM = cfg.RETURN_DOM || false; // Default false
        RETURN_DOM_FRAGMENT = cfg.RETURN_DOM_FRAGMENT || false; // Default false
        RETURN_TRUSTED_TYPE = cfg.RETURN_TRUSTED_TYPE || false; // Default false
        FORCE_BODY = cfg.FORCE_BODY || false; // Default false
        SANITIZE_DOM = cfg.SANITIZE_DOM !== false; // Default true
        SANITIZE_NAMED_PROPS = cfg.SANITIZE_NAMED_PROPS || false; // Default false
        KEEP_CONTENT = cfg.KEEP_CONTENT !== false; // Default true
        IN_PLACE = cfg.IN_PLACE || false; // Default false
        IS_ALLOWED_URI$1 = isRegex(cfg.ALLOWED_URI_REGEXP) ? cfg.ALLOWED_URI_REGEXP : IS_ALLOWED_URI; // Default regexp
        NAMESPACE = typeof cfg.NAMESPACE === 'string' ? cfg.NAMESPACE : HTML_NAMESPACE; // Default HTML namespace
        MATHML_TEXT_INTEGRATION_POINTS = objectHasOwnProperty(cfg, 'MATHML_TEXT_INTEGRATION_POINTS') && cfg.MATHML_TEXT_INTEGRATION_POINTS && typeof cfg.MATHML_TEXT_INTEGRATION_POINTS === 'object' ? clone(cfg.MATHML_TEXT_INTEGRATION_POINTS) : addToSet({}, ['mi', 'mo', 'mn', 'ms', 'mtext']); // Default built-in map
        HTML_INTEGRATION_POINTS = objectHasOwnProperty(cfg, 'HTML_INTEGRATION_POINTS') && cfg.HTML_INTEGRATION_POINTS && typeof cfg.HTML_INTEGRATION_POINTS === 'object' ? clone(cfg.HTML_INTEGRATION_POINTS) : addToSet({}, ['annotation-xml']); // Default built-in map
        const customElementHandling = objectHasOwnProperty(cfg, 'CUSTOM_ELEMENT_HANDLING') && cfg.CUSTOM_ELEMENT_HANDLING && typeof cfg.CUSTOM_ELEMENT_HANDLING === 'object' ? clone(cfg.CUSTOM_ELEMENT_HANDLING) : create(null);
        CUSTOM_ELEMENT_HANDLING = create(null);
        if (objectHasOwnProperty(customElementHandling, 'tagNameCheck') && isRegexOrFunction(customElementHandling.tagNameCheck)) {
          CUSTOM_ELEMENT_HANDLING.tagNameCheck = customElementHandling.tagNameCheck; // Default undefined
        }
        if (objectHasOwnProperty(customElementHandling, 'attributeNameCheck') && isRegexOrFunction(customElementHandling.attributeNameCheck)) {
          CUSTOM_ELEMENT_HANDLING.attributeNameCheck = customElementHandling.attributeNameCheck; // Default undefined
        }
        if (objectHasOwnProperty(customElementHandling, 'allowCustomizedBuiltInElements') && typeof customElementHandling.allowCustomizedBuiltInElements === 'boolean') {
          CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements = customElementHandling.allowCustomizedBuiltInElements; // Default undefined
        }
        if (SAFE_FOR_TEMPLATES) {
          ALLOW_DATA_ATTR = false;
        }
        if (RETURN_DOM_FRAGMENT) {
          RETURN_DOM = true;
        }
        /* Parse profile info */
        if (USE_PROFILES) {
          ALLOWED_TAGS = addToSet({}, text);
          ALLOWED_ATTR = create(null);
          if (USE_PROFILES.html === true) {
            addToSet(ALLOWED_TAGS, html$1);
            addToSet(ALLOWED_ATTR, html);
          }
          if (USE_PROFILES.svg === true) {
            addToSet(ALLOWED_TAGS, svg$1);
            addToSet(ALLOWED_ATTR, svg);
            addToSet(ALLOWED_ATTR, xml);
          }
          if (USE_PROFILES.svgFilters === true) {
            addToSet(ALLOWED_TAGS, svgFilters);
            addToSet(ALLOWED_ATTR, svg);
            addToSet(ALLOWED_ATTR, xml);
          }
          if (USE_PROFILES.mathMl === true) {
            addToSet(ALLOWED_TAGS, mathMl$1);
            addToSet(ALLOWED_ATTR, mathMl);
            addToSet(ALLOWED_ATTR, xml);
          }
        }
        /* Always reset function-based ADD_TAGS / ADD_ATTR checks to prevent
         * leaking across calls when switching from function to array config */
        EXTRA_ELEMENT_HANDLING.tagCheck = null;
        EXTRA_ELEMENT_HANDLING.attributeCheck = null;
        /* Merge configuration parameters */
        if (objectHasOwnProperty(cfg, 'ADD_TAGS')) {
          if (typeof cfg.ADD_TAGS === 'function') {
            EXTRA_ELEMENT_HANDLING.tagCheck = cfg.ADD_TAGS;
          } else if (arrayIsArray(cfg.ADD_TAGS)) {
            if (ALLOWED_TAGS === DEFAULT_ALLOWED_TAGS) {
              ALLOWED_TAGS = clone(ALLOWED_TAGS);
            }
            addToSet(ALLOWED_TAGS, cfg.ADD_TAGS, transformCaseFunc);
          }
        }
        if (objectHasOwnProperty(cfg, 'ADD_ATTR')) {
          if (typeof cfg.ADD_ATTR === 'function') {
            EXTRA_ELEMENT_HANDLING.attributeCheck = cfg.ADD_ATTR;
          } else if (arrayIsArray(cfg.ADD_ATTR)) {
            if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) {
              ALLOWED_ATTR = clone(ALLOWED_ATTR);
            }
            addToSet(ALLOWED_ATTR, cfg.ADD_ATTR, transformCaseFunc);
          }
        }
        if (objectHasOwnProperty(cfg, 'ADD_URI_SAFE_ATTR') && arrayIsArray(cfg.ADD_URI_SAFE_ATTR)) {
          addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR, transformCaseFunc);
        }
        if (objectHasOwnProperty(cfg, 'FORBID_CONTENTS') && arrayIsArray(cfg.FORBID_CONTENTS)) {
          if (FORBID_CONTENTS === DEFAULT_FORBID_CONTENTS) {
            FORBID_CONTENTS = clone(FORBID_CONTENTS);
          }
          addToSet(FORBID_CONTENTS, cfg.FORBID_CONTENTS, transformCaseFunc);
        }
        if (objectHasOwnProperty(cfg, 'ADD_FORBID_CONTENTS') && arrayIsArray(cfg.ADD_FORBID_CONTENTS)) {
          if (FORBID_CONTENTS === DEFAULT_FORBID_CONTENTS) {
            FORBID_CONTENTS = clone(FORBID_CONTENTS);
          }
          addToSet(FORBID_CONTENTS, cfg.ADD_FORBID_CONTENTS, transformCaseFunc);
        }
        /* Add #text in case KEEP_CONTENT is set to true */
        if (KEEP_CONTENT) {
          ALLOWED_TAGS['#text'] = true;
        }
        /* Add html, head and body to ALLOWED_TAGS in case WHOLE_DOCUMENT is true */
        if (WHOLE_DOCUMENT) {
          addToSet(ALLOWED_TAGS, ['html', 'head', 'body']);
        }
        /* Add tbody to ALLOWED_TAGS in case tables are permitted, see #286, #365 */
        if (ALLOWED_TAGS.table) {
          addToSet(ALLOWED_TAGS, ['tbody']);
          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.
        // Not available in IE8, Safari 5, etc.
        if (freeze) {
          freeze(cfg);
        }
        CONFIG = cfg;
      };
      /* Keep track of all possible SVG and MathML tags
       * so that we can perform the namespace checks
       * correctly. */
      const ALL_SVG_TAGS = addToSet({}, [...svg$1, ...svgFilters, ...svgDisallowed]);
      const ALL_MATHML_TAGS = addToSet({}, [...mathMl$1, ...mathMlDisallowed]);
      /**
       * @param element a DOM element whose namespace is being checked
       * @returns Return false if the element has a
       *  namespace that a spec-compliant parser would never
       *  return. Return true otherwise.
       */
      const _checkValidNamespace = function _checkValidNamespace(element) {
        let parent = getParentNode(element);
        // In JSDOM, if we're inside shadow DOM, then parentNode
        // can be null. We just simulate parent in this case.
        if (!parent || !parent.tagName) {
          parent = {
            namespaceURI: NAMESPACE,
            tagName: 'template'
          };
        }
        const tagName = stringToLowerCase(element.tagName);
        const parentTagName = stringToLowerCase(parent.tagName);
        if (!ALLOWED_NAMESPACES[element.namespaceURI]) {
          return false;
        }
        if (element.namespaceURI === SVG_NAMESPACE) {
          // The only way to switch from HTML namespace to SVG
          // is via <svg>. If it happens via any other tag, then
          // it should be killed.
          if (parent.namespaceURI === HTML_NAMESPACE) {
            return tagName === 'svg';
          }
          // The only way to switch from MathML to SVG is via`
          // svg if parent is either <annotation-xml> or MathML
          // text integration points.
          if (parent.namespaceURI === MATHML_NAMESPACE) {
            return tagName === 'svg' && (parentTagName === 'annotation-xml' || MATHML_TEXT_INTEGRATION_POINTS[parentTagName]);
          }
          // We only allow elements that are defined in SVG
          // spec. All others are disallowed in SVG namespace.
          return Boolean(ALL_SVG_TAGS[tagName]);
        }
        if (element.namespaceURI === MATHML_NAMESPACE) {
          // The only way to switch from HTML namespace to MathML
          // is via <math>. If it happens via any other tag, then
          // it should be killed.
          if (parent.namespaceURI === HTML_NAMESPACE) {
            return tagName === 'math';
          }
          // The only way to switch from SVG to MathML is via
          // <math> and HTML integration points
          if (parent.namespaceURI === SVG_NAMESPACE) {
            return tagName === 'math' && HTML_INTEGRATION_POINTS[parentTagName];
          }
          // We only allow elements that are defined in MathML
          // spec. All others are disallowed in MathML namespace.
          return Boolean(ALL_MATHML_TAGS[tagName]);
        }
        if (element.namespaceURI === HTML_NAMESPACE) {
          // The only way to switch from SVG to HTML is via
          // HTML integration points, and from MathML to HTML
          // is via MathML text integration points
          if (parent.namespaceURI === SVG_NAMESPACE && !HTML_INTEGRATION_POINTS[parentTagName]) {
            return false;
          }
          if (parent.namespaceURI === MATHML_NAMESPACE && !MATHML_TEXT_INTEGRATION_POINTS[parentTagName]) {
            return false;
          }
          // We disallow tags that are specific for MathML
          // or SVG and should never appear in HTML namespace
          return !ALL_MATHML_TAGS[tagName] && (COMMON_SVG_AND_HTML_ELEMENTS[tagName] || !ALL_SVG_TAGS[tagName]);
        }
        // For XHTML and XML documents that support custom namespaces
        if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && ALLOWED_NAMESPACES[element.namespaceURI]) {
          return true;
        }
        // The code should never reach this place (this means
        // that the element somehow got namespace that is not
        // HTML, SVG, MathML or allowed via ALLOWED_NAMESPACES).
        // Return false just in case.
        return false;
      };
      /**
       * _forceRemove
       *
       * @param node a DOM node
       */
      const _forceRemove = function _forceRemove(node) {
        arrayPush(DOMPurify.removed, {
          element: node
        });
        try {
          // eslint-disable-next-line unicorn/prefer-dom-node-remove
          getParentNode(node).removeChild(node);
        } catch (_) {
          remove(node);
        }
      };
      /**
       * _removeAttribute
       *
       * @param name an Attribute name
       * @param element a DOM node
       */
      const _removeAttribute = function _removeAttribute(name, element) {
        try {
          arrayPush(DOMPurify.removed, {
            attribute: element.getAttributeNode(name),
            from: element
          });
        } catch (_) {
          arrayPush(DOMPurify.removed, {
            attribute: null,
            from: element
          });
        }
        element.removeAttribute(name);
        // We void attribute values for unremovable "is" attributes
        if (name === 'is') {
          if (RETURN_DOM || RETURN_DOM_FRAGMENT) {
            try {
              _forceRemove(element);
            } catch (_) {}
          } else {
            try {
              element.setAttribute(name, '');
            } catch (_) {}
          }
        }
      };
      /**
       * _initDocument
       *
       * @param dirty - a string of dirty markup
       * @return a DOM, filled with the dirty markup
       */
      const _initDocument = function _initDocument(dirty) {
        /* Create a HTML document */
        let doc = null;
        let leadingWhitespace = null;
        if (FORCE_BODY) {
          dirty = '<remove></remove>' + dirty;
        } else {
          /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */
          const matches = stringMatch(dirty, /^[\r\n\t ]+/);
          leadingWhitespace = matches && matches[0];
        }
        if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && NAMESPACE === HTML_NAMESPACE) {
          // Root of XHTML doc must contain xmlns declaration (see https://www.w3.org/TR/xhtml1/normative.html#strict)
          dirty = '<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body>' + dirty + '</body></html>';
        }
        const dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty;
        /*
         * Use the DOMParser API by default, fallback later if needs be
         * DOMParser not work for svg when has multiple root element.
         */
        if (NAMESPACE === HTML_NAMESPACE) {
          try {
            doc = new DOMParser().parseFromString(dirtyPayload, PARSER_MEDIA_TYPE);
          } catch (_) {}
        }
        /* Use createHTMLDocument in case DOMParser is not available */
        if (!doc || !doc.documentElement) {
          doc = implementation.createDocument(NAMESPACE, 'template', null);
          try {
            doc.documentElement.innerHTML = IS_EMPTY_INPUT ? emptyHTML : dirtyPayload;
          } catch (_) {
            // Syntax error if dirtyPayload is invalid xml
          }
        }
        const body = doc.body || doc.documentElement;
        if (dirty && leadingWhitespace) {
          body.insertBefore(document.createTextNode(leadingWhitespace), body.childNodes[0] || null);
        }
        /* Work on whole document or just its body */
        if (NAMESPACE === HTML_NAMESPACE) {
          return getElementsByTagName.call(doc, WHOLE_DOCUMENT ? 'html' : 'body')[0];
        }
        return WHOLE_DOCUMENT ? doc.documentElement : body;
      };
      /**
       * Creates a NodeIterator object that you can use to traverse filtered lists of nodes or elements in a document.
       *
       * @param root The root element or node to start traversing on.
       * @return The created NodeIterator
       */
      const _createNodeIterator = function _createNodeIterator(root) {
        return createNodeIterator.call(root.ownerDocument || root, root,
        // eslint-disable-next-line no-bitwise
        NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT | NodeFilter.SHOW_PROCESSING_INSTRUCTION | NodeFilter.SHOW_CDATA_SECTION, null);
      };
      /**
       * _isClobbered
       *
       * @param element element to check for clobbering attacks
       * @return true if clobbered, false if safe
       */
      const _isClobbered = function _isClobbered(element) {
        return element instanceof HTMLFormElement && (typeof element.nodeName !== 'string' || typeof element.textContent !== 'string' || typeof element.removeChild !== 'function' || !(element.attributes instanceof NamedNodeMap) || typeof element.removeAttribute !== 'function' || typeof element.setAttribute !== 'function' || typeof element.namespaceURI !== 'string' || typeof element.insertBefore !== 'function' || typeof element.hasChildNodes !== 'function');
      };
      /**
       * Checks whether the given object is a DOM node.
       *
       * @param value object to check whether it's a DOM node
       * @return true is object is a DOM node
       */
      const _isNode = function _isNode(value) {
        return typeof Node === 'function' && value instanceof Node;
      };
      function _executeHooks(hooks, currentNode, data) {
        arrayForEach(hooks, hook => {
          hook.call(DOMPurify, currentNode, data, CONFIG);
        });
      }
      /**
       * _sanitizeElements
       *
       * @protect nodeName
       * @protect textContent
       * @protect removeChild
       * @param currentNode to check for permission to exist
       * @return true if node was killed, false if left alive
       */
      const _sanitizeElements = function _sanitizeElements(currentNode) {
        let content = null;
        /* Execute a hook if present */
        _executeHooks(hooks.beforeSanitizeElements, currentNode, null);
        /* Check if element is clobbered or can clobber */
        if (_isClobbered(currentNode)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Now let's check the element's type and name */
        const tagName = transformCaseFunc(currentNode.nodeName);
        /* Execute a hook if present */
        _executeHooks(hooks.uponSanitizeElement, currentNode, {
          tagName,
          allowedTags: ALLOWED_TAGS
        });
        /* Detect mXSS attempts abusing namespace confusion */
        if (SAFE_FOR_XML && currentNode.hasChildNodes() && !_isNode(currentNode.firstElementChild) && regExpTest(/<[/\w!]/g, currentNode.innerHTML) && regExpTest(/<[/\w!]/g, currentNode.textContent)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Remove risky CSS construction leading to mXSS */
        if (SAFE_FOR_XML && currentNode.namespaceURI === HTML_NAMESPACE && tagName === 'style' && _isNode(currentNode.firstElementChild)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Remove any occurrence of processing instructions */
        if (currentNode.nodeType === NODE_TYPE.progressingInstruction) {
          _forceRemove(currentNode);
          return true;
        }
        /* Remove any kind of possibly harmful comments */
        if (SAFE_FOR_XML && currentNode.nodeType === NODE_TYPE.comment && regExpTest(/<[/\w]/g, currentNode.data)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Remove element if anything forbids its presence */
        if (FORBID_TAGS[tagName] || !(EXTRA_ELEMENT_HANDLING.tagCheck instanceof Function && EXTRA_ELEMENT_HANDLING.tagCheck(tagName)) && !ALLOWED_TAGS[tagName]) {
          /* Check if we have a custom element to handle */
          if (!FORBID_TAGS[tagName] && _isBasicCustomElement(tagName)) {
            if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, tagName)) {
              return false;
            }
            if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(tagName)) {
              return false;
            }
          }
          /* Keep content except for bad-listed elements */
          if (KEEP_CONTENT && !FORBID_CONTENTS[tagName]) {
            const parentNode = getParentNode(currentNode) || currentNode.parentNode;
            const childNodes = getChildNodes(currentNode) || currentNode.childNodes;
            if (childNodes && parentNode) {
              const childCount = childNodes.length;
              for (let i = childCount - 1; i >= 0; --i) {
                const childClone = cloneNode(childNodes[i], true);
                parentNode.insertBefore(childClone, getNextSibling(currentNode));
              }
            }
          }
          _forceRemove(currentNode);
          return true;
        }
        /* Check whether element has a valid namespace */
        if (currentNode instanceof Element && !_checkValidNamespace(currentNode)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Make sure that older browsers don't get fallback-tag mXSS */
        if ((tagName === 'noscript' || tagName === 'noembed' || tagName === 'noframes') && regExpTest(/<\/no(script|embed|frames)/i, currentNode.innerHTML)) {
          _forceRemove(currentNode);
          return true;
        }
        /* Sanitize element content to be template-safe */
        if (SAFE_FOR_TEMPLATES && currentNode.nodeType === NODE_TYPE.text) {
          /* Get the element's text content */
          content = currentNode.textContent;
          arrayForEach([MUSTACHE_EXPR, ERB_EXPR, TMPLIT_EXPR], expr => {
            content = stringReplace(content, expr, ' ');
          });
          if (currentNode.textContent !== content) {
            arrayPush(DOMPurify.removed, {
              element: currentNode.cloneNode()
            });
            currentNode.textContent = content;
          }
        }
        /* Execute a hook if present */
        _executeHooks(hooks.afterSanitizeElements, currentNode, null);
        return false;
      };
      /**
       * _isValidAttribute
       *
       * @param lcTag Lowercase tag name of containing element.
       * @param lcName Lowercase attribute name.
       * @param value Attribute value.
       * @return Returns true if `value` is valid, otherwise false.
       */
      // eslint-disable-next-line complexity
      const _isValidAttribute = function _isValidAttribute(lcTag, lcName, value) {
        /* FORBID_ATTR must always win, even if ADD_ATTR predicate would allow it */
        if (FORBID_ATTR[lcName]) {
          return false;
        }
        /* Make sure attribute cannot clobber */
        if (SANITIZE_DOM && (lcName === 'id' || lcName === 'name') && (value in document || value in formElement)) {
          return false;
        }
        const nameIsPermitted = ALLOWED_ATTR[lcName] || EXTRA_ELEMENT_HANDLING.attributeCheck instanceof Function && EXTRA_ELEMENT_HANDLING.attributeCheck(lcName, lcTag);
        /* Allow valid data-* attributes: At least one character after "-"
            (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes)
            XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804)
            We don't need to check the value; it's always URI safe. */
        if (ALLOW_DATA_ATTR && !FORBID_ATTR[lcName] && regExpTest(DATA_ATTR, lcName)) ; else if (ALLOW_ARIA_ATTR && regExpTest(ARIA_ATTR, lcName)) ; else if (!nameIsPermitted || FORBID_ATTR[lcName]) {
          if (
          // First condition does a very basic check if a) it's basically a valid custom element tagname AND
          // b) if the tagName passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck
          // and c) if the attribute name passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.attributeNameCheck
          _isBasicCustomElement(lcTag) && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, lcTag) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(lcTag)) && (CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.attributeNameCheck, lcName) || CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.attributeNameCheck(lcName, lcTag)) ||
          // Alternative, second condition checks if it's an `is`-attribute, AND
          // the value passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck
          lcName === 'is' && CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, value) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(value))) ; else {
            return false;
          }
          /* Check value is safe. First, is attr inert? If so, is safe */
        } 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 ;
        return true;
      };
      /* Names the HTML spec reserves from valid-custom-element-name; these must
       * never be treated as basic custom elements even when a permissive
       * CUSTOM_ELEMENT_HANDLING.tagNameCheck is configured. */
      const RESERVED_CUSTOM_ELEMENT_NAMES = addToSet({}, ['annotation-xml', 'color-profile', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'missing-glyph']);
      /**
       * _isBasicCustomElement
       * checks if at least one dash is included in tagName, and it's not the first char
       * for more sophisticated checking see https://github.com/sindresorhus/validate-element-name
       *
       * @param tagName name of the tag of the node to sanitize
       * @returns Returns true if the tag name meets the basic criteria for a custom element, otherwise false.
       */
      const _isBasicCustomElement = function _isBasicCustomElement(tagName) {
        return !RESERVED_CUSTOM_ELEMENT_NAMES[stringToLowerCase(tagName)] && regExpTest(CUSTOM_ELEMENT, tagName);
      };
      /**
       * _sanitizeAttributes
       *
       * @protect attributes
       * @protect nodeName
       * @protect removeAttribute
       * @protect setAttribute
       *
       * @param currentNode to sanitize
       */
      const _sanitizeAttributes = function _sanitizeAttributes(currentNode) {
        /* Execute a hook if present */
        _executeHooks(hooks.beforeSanitizeAttributes, currentNode, null);
        const {
          attributes
        } = currentNode;
        /* Check if we have attributes; if not we might have a text node */
        if (!attributes || _isClobbered(currentNode)) {
          return;
        }
        const hookEvent = {
          attrName: '',
          attrValue: '',
          keepAttr: true,
          allowedAttributes: ALLOWED_ATTR,
          forceKeepAttr: undefined
        };
        let l = attributes.length;
        /* Go backwards over all attributes; safely remove bad ones */
        while (l--) {
          const attr = attributes[l];
          const {
            name,
            namespaceURI,
            value: attrValue
          } = attr;
          const lcName = transformCaseFunc(name);
          const initValue = attrValue;
          let value = name === 'value' ? initValue : stringTrim(initValue);
          /* Execute a hook if present */
          hookEvent.attrName = lcName;
          hookEvent.attrValue = value;
          hookEvent.keepAttr = true;
          hookEvent.forceKeepAttr = undefined; // Allows developers to see this is a property they can set
          _executeHooks(hooks.uponSanitizeAttribute, currentNode, hookEvent);
          value = hookEvent.attrValue;
          /* Full DOM Clobbering protection via namespace isolation,
           * Prefix id and name attributes with `user-content-`
           */
          if (SANITIZE_NAMED_PROPS && (lcName === 'id' || lcName === 'name') && stringIndexOf(value, SANITIZE_NAMED_PROPS_PREFIX) !== 0) {
            // Remove the attribute with this value
            _removeAttribute(name, currentNode);
            // Prefix the value and later re-create the attribute with the sanitized value
            value = SANITIZE_NAMED_PROPS_PREFIX + value;
          }
          // Else: already prefixed, leave the attribute alone — the prefix is
          // itself the clobbering protection, and re-applying it is incorrect.
          /* Work around a security issue with comments inside attributes */
          if (SAFE_FOR_XML && regExpTest(/((--!?|])>)|<\/(style|script|title|xmp|textarea|noscript|iframe|noembed|noframes)/i, value)) {
            _removeAttribute(name, currentNode);
            continue;
          }
          /* Make sure we cannot easily use animated hrefs, even if animations are allowed */
          if (lcName === 'attributename' && stringMatch(value, 'href')) {
            _removeAttribute(name, currentNode);
            continue;
          }
          /* Did the hooks approve of the attribute? */
          if (hookEvent.forceKeepAttr) {
            continue;
          }
          /* Did the hooks approve of the attribute? */
          if (!hookEvent.keepAttr) {
            _removeAttribute(name, currentNode);
            continue;
          }
          /* Work around a security issue in jQuery 3.0 */
          if (!ALLOW_SELF_CLOSE_IN_ATTR && regExpTest(/\/>/i, value)) {
            _removeAttribute(name, currentNode);
            continue;
          }
          /* Sanitize attribute content to be template-safe */
          if (SAFE_FOR_TEMPLATES) {
            arrayForEach([MUSTACHE_EXPR, ERB_EXPR, TMPLIT_EXPR], expr => {
              value = stringReplace(value, expr, ' ');
            });
          }
          /* Is `value` valid for this attribute? */
          const lcTag = transformCaseFunc(currentNode.nodeName);
          if (!_isValidAttribute(lcTag, lcName, value)) {
            _removeAttribute(name, currentNode);
            continue;
          }
          /* Handle attributes that require Trusted Types */
          if (trustedTypesPolicy && typeof trustedTypes === 'object' && typeof trustedTypes.getAttributeType === 'function') {
            if (namespaceURI) ; else {
              switch (trustedTypes.getAttributeType(lcTag, lcName)) {
                case 'TrustedHTML':
                  {
                    value = trustedTypesPolicy.createHTML(value);
                    break;
                  }
                case 'TrustedScriptURL':
                  {
                    value = trustedTypesPolicy.createScriptURL(value);
                    break;
                  }
              }
            }
          }
          /* Handle invalid data-* attribute set by try-catching it */
          if (value !== initValue) {
            try {
              if (namespaceURI) {
                currentNode.setAttributeNS(namespaceURI, name, value);
              } else {
                /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. "x-schema". */
                currentNode.setAttribute(name, value);
              }
              if (_isClobbered(currentNode)) {
                _forceRemove(currentNode);
              } else {
                arrayPop(DOMPurify.removed);
              }
            } catch (_) {
              _removeAttribute(name, currentNode);
            }
          }
        }
        /* Execute a hook if present */
        _executeHooks(hooks.afterSanitizeAttributes, currentNode, null);
      };
      /**
       * _sanitizeShadowDOM
       *
       * @param fragment to iterate over recursively
       */
      const _sanitizeShadowDOM2 = function _sanitizeShadowDOM(fragment) {
        let shadowNode = null;
        const shadowIterator = _createNodeIterator(fragment);
        /* Execute a hook if present */
        _executeHooks(hooks.beforeSanitizeShadowDOM, fragment, null);
        while (shadowNode = shadowIterator.nextNode()) {
          /* Execute a hook if present */
          _executeHooks(hooks.uponSanitizeShadowNode, shadowNode, null);
          /* Sanitize tags and elements */
          _sanitizeElements(shadowNode);
          /* Check attributes next */
          _sanitizeAttributes(shadowNode);
          /* Deep shadow DOM detected */
          if (shadowNode.content instanceof DocumentFragment) {
            _sanitizeShadowDOM2(shadowNode.content);
          }
        }
        /* Execute a hook if present */
        _executeHooks(hooks.afterSanitizeShadowDOM, fragment, null);
      };
      // eslint-disable-next-line complexity
      DOMPurify.sanitize = function (dirty) {
        let cfg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
        let body = null;
        let importedNode = null;
        let currentNode = null;
        let returnNode = null;
        /* Make sure we have a string to sanitize.
          DO NOT return early, as this will return the wrong type if
          the user has requested a DOM object rather than a string */
        IS_EMPTY_INPUT = !dirty;
        if (IS_EMPTY_INPUT) {
          dirty = '<!-->';
        }
        /* Stringify, in case dirty is an object */
        if (typeof dirty !== 'string' && !_isNode(dirty)) {
          dirty = stringifyValue(dirty);
          if (typeof dirty !== 'string') {
            throw typeErrorCreate('dirty is not a string, aborting');
          }
        }
        /* Return dirty HTML if DOMPurify cannot run */
        if (!DOMPurify.isSupported) {
          return dirty;
        }
        /* Assign config vars */
        if (!SET_CONFIG) {
          _parseConfig(cfg);
        }
        /* Clean up removed elements */
        DOMPurify.removed = [];
        /* Check if dirty is correctly typed for IN_PLACE */
        if (typeof dirty === 'string') {
          IN_PLACE = false;
        }
        if (IN_PLACE) {
          /* Do some early pre-sanitization to avoid unsafe root nodes */
          const nn = dirty.nodeName;
          if (typeof nn === 'string') {
            const tagName = transformCaseFunc(nn);
            if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) {
              throw typeErrorCreate('root node is forbidden and cannot be sanitized in-place');
            }
          }
        } else if (dirty instanceof Node) {
          /* If dirty is a DOM element, append to an empty document to avoid
             elements being stripped by the parser */
          body = _initDocument('<!---->');
          importedNode = body.ownerDocument.importNode(dirty, true);
          if (importedNode.nodeType === NODE_TYPE.element && importedNode.nodeName === 'BODY') {
            /* Node is already a body, use as is */
            body = importedNode;
          } else if (importedNode.nodeName === 'HTML') {
            body = importedNode;
          } else {
            // eslint-disable-next-line unicorn/prefer-dom-node-append
            body.appendChild(importedNode);
          }
        } else {
          /* Exit directly if we have nothing to do */
          if (!RETURN_DOM && !SAFE_FOR_TEMPLATES && !WHOLE_DOCUMENT &&
          // eslint-disable-next-line unicorn/prefer-includes
          dirty.indexOf('<') === -1) {
            return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(dirty) : dirty;
          }
          /* Initialize the document to work on */
          body = _initDocument(dirty);
          /* Check we have a DOM node from the data */
          if (!body) {
            return RETURN_DOM ? null : RETURN_TRUSTED_TYPE ? emptyHTML : '';
          }
        }
        /* Remove first element node (ours) if FORCE_BODY is set */
        if (body && FORCE_BODY) {
          _forceRemove(body.firstChild);
        }
        /* Get node iterator */
        const nodeIterator = _createNodeIterator(IN_PLACE ? dirty : body);
        /* Now start iterating over the created document */
        while (currentNode = nodeIterator.nextNode()) {
          /* Sanitize tags and elements */
          _sanitizeElements(currentNode);
          /* Check attributes next */
          _sanitizeAttributes(currentNode);
          /* Shadow DOM detected, sanitize it */
          if (currentNode.content instanceof DocumentFragment) {
            _sanitizeShadowDOM2(currentNode.content);
          }
        }
        /* If we sanitized `dirty` in-place, return it. */
        if (IN_PLACE) {
          return dirty;
        }
        /* Return sanitized string or DOM */
        if (RETURN_DOM) {
          if (SAFE_FOR_TEMPLATES) {
            body.normalize();
            let html = body.innerHTML;
            arrayForEach([MUSTACHE_EXPR, ERB_EXPR, TMPLIT_EXPR], expr => {
              html = stringReplace(html, expr, ' ');
            });
            body.innerHTML = html;
          }
          if (RETURN_DOM_FRAGMENT) {
            returnNode = createDocumentFragment.call(body.ownerDocument);
            while (body.firstChild) {
              // eslint-disable-next-line unicorn/prefer-dom-node-append
              returnNode.appendChild(body.firstChild);
            }
          } else {
            returnNode = body;
          }
          if (ALLOWED_ATTR.shadowroot || ALLOWED_ATTR.shadowrootmode) {
            /*
              AdoptNode() is not used because internal state is not reset
              (e.g. the past names map of a HTMLFormElement), this is safe
              in theory but we would rather not risk another attack vector.
              The state that is cloned by importNode() is explicitly defined
              by the specs.
            */
            returnNode = importNode.call(originalDocument, returnNode, true);
          }
          return returnNode;
        }
        let serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML;
        /* Serialize doctype if allowed */
        if (WHOLE_DOCUMENT && ALLOWED_TAGS['!doctype'] && body.ownerDocument && body.ownerDocument.doctype && body.ownerDocument.doctype.name && regExpTest(DOCTYPE_NAME, body.ownerDocument.doctype.name)) {
          serializedHTML = '<!DOCTYPE ' + body.ownerDocument.doctype.name + '>\n' + serializedHTML;
        }
        /* Sanitize final string template-safe */
        if (SAFE_FOR_TEMPLATES) {
          arrayForEach([MUSTACHE_EXPR, ERB_EXPR, TMPLIT_EXPR], expr => {
            serializedHTML = stringReplace(serializedHTML, expr, ' ');
          });
        }
        return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML;
      };
      DOMPurify.setConfig = function () {
        let cfg = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
        _parseConfig(cfg);
        SET_CONFIG = true;
      };
      DOMPurify.clearConfig = function () {
        CONFIG = null;
        SET_CONFIG = false;
      };
      DOMPurify.isValidAttribute = function (tag, attr, value) {
        /* Initialize shared config vars if necessary. */
        if (!CONFIG) {
          _parseConfig({});
        }
        const lcTag = transformCaseFunc(tag);
        const lcName = transformCaseFunc(attr);
        return _isValidAttribute(lcTag, lcName, value);
      };
      DOMPurify.addHook = function (entryPoint, hookFunction) {
        if (typeof hookFunction !== 'function') {
          return;
        }
        arrayPush(hooks[entryPoint], hookFunction);
      };
      DOMPurify.removeHook = function (entryPoint, hookFunction) {
        if (hookFunction !== undefined) {
          const index = arrayLastIndexOf(hooks[entryPoint], hookFunction);
          return index === -1 ? undefined : arraySplice(hooks[entryPoint], index, 1)[0];
        }
        return arrayPop(hooks[entryPoint]);
      };
      DOMPurify.removeHooks = function (entryPoint) {
        hooks[entryPoint] = [];
      };
      DOMPurify.removeAllHooks = function () {
        hooks = _createHooksMap();
      };
      return DOMPurify;
    }
    var purify = createDOMPurify();

    return purify;

}));
//# sourceMappingURL=purify.js.map