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

  var freeze$1 = Object.freeze || function (x) {
    return x;
  };

  var html = freeze$1(['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', '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', 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'section', 'select', 'shadow', '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']);

// SVG
  var svg = freeze$1(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'audio', 'canvas', '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', 'video', 'view', 'vkern']);

  var svgFilters = freeze$1(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']);

  var mathMl = freeze$1(['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']);

  var text = freeze$1(['#text']);

  var freeze$2 = Object.freeze || function (x) {
    return x;
  };

  var html$1 = freeze$2(['accept', 'action', 'align', 'alt', 'autocomplete', 'background', 'bgcolor', 'border', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'controls', 'coords', 'crossorigin', 'datetime', 'default', 'dir', 'disabled', 'download', 'enctype', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'integrity', 'ismap', 'label', 'lang', 'list', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'minlength', 'multiple', 'name', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'pattern', 'placeholder', 'poster', 'preload', 'pubdate', 'radiogroup', 'readonly', 'rel', 'required', 'rev', 'reversed', 'role', 'rows', 'rowspan', 'spellcheck', 'scope', 'selected', 'shape', 'size', 'sizes', 'span', 'srclang', 'start', 'src', 'srcset', 'step', 'style', 'summary', 'tabindex', 'title', 'type', 'usemap', 'valign', 'value', 'width', 'xmlns']);

  var svg$1 = freeze$2(['accent-height', 'accumulate', 'additive', 'alignment-baseline', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', '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', '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', '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', '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', 'specularconstant', 'specularexponent', 'spreadmethod', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'tabindex', 'targetx', 'targety', 'transform', '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']);

  var mathMl$1 = freeze$2(['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnsalign', 'columnlines', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', 'encoding', 'fence', 'frame', 'height', 'href', 'id', 'largeop', 'length', 'linethickness', 'lspace', 'lquote', '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']);

  var xml = freeze$2(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']);

  var hasOwnProperty = Object.hasOwnProperty;
  var setPrototypeOf = Object.setPrototypeOf;

  var _ref$1 = typeof Reflect !== 'undefined' && Reflect;
  var apply$1 = _ref$1.apply;

  if (!apply$1) {
    apply$1 = function apply(fun, thisValue, args) {
      return fun.apply(thisValue, args);
    };
  }

  /* Add properties to a lookup table */
  function addToSet(set, array) {
    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);
    }

    var l = array.length;
    while (l--) {
      var element = array[l];
      if (typeof element === 'string') {
        var lcElement = element.toLowerCase();
        if (lcElement !== element) {
          // Config presets (e.g. tags.js, attrs.js) are immutable.
          if (!Object.isFrozen(array)) {
            array[l] = lcElement;
          }

          element = lcElement;
        }
      }

      set[element] = true;
    }

    return set;
  }

  /* Shallow clone an object */
  function clone(object) {
    var newObject = {};

    var property = void 0;
    for (property in object) {
      if (apply$1(hasOwnProperty, object, [property])) {
        newObject[property] = object[property];
      }
    }

    return newObject;
  }

  var seal = Object.seal || function (x) {
    return x;
  };

  var MUSTACHE_EXPR = seal(/\{\{[\s\S]*|[\s\S]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode
  var ERB_EXPR = seal(/<%[\s\S]*|[\s\S]*%>/gm);
  var DATA_ATTR = seal(/^data-[\-\w.\u00B7-\uFFFF]/); // eslint-disable-line no-useless-escape
  var ARIA_ATTR = seal(/^aria-[\-\w]+$/); // eslint-disable-line no-useless-escape
  var IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|cid|xmpp):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i // eslint-disable-line no-useless-escape
  );
  var IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i);
  var ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g // eslint-disable-line no-control-regex
  );

  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

  function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

  var _ref = typeof Reflect !== 'undefined' && Reflect;
  var apply = _ref.apply;

  var arraySlice = Array.prototype.slice;
  var freeze = Object.freeze;

  var getGlobal = function getGlobal() {
    return typeof window === 'undefined' ? null : window;
  };

  if (!apply) {
    apply = function apply(fun, thisValue, args) {
      return fun.apply(thisValue, args);
    };
  }

  /**
   * Creates a no-op policy for internal use only.
   * Don't export this function outside this module!
   * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory.
   * @param {Document} document The document object (to determine policy name suffix)
   * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types
   * are not supported).
   */
  var _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) {
    if ((typeof trustedTypes === 'undefined' ? 'undefined' : _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.
    var suffix = null;
    var ATTR_NAME = 'data-tt-policy-suffix';
    if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) {
      suffix = document.currentScript.getAttribute(ATTR_NAME);
    }

    var policyName = 'dompurify' + (suffix ? '#' + suffix : '');

    try {
      return trustedTypes.createPolicy(policyName, {
        createHTML: function createHTML(html$$1) {
          return html$$1;
        }
      });
    } catch (error) {
      // 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;
    }
  };

  function createDOMPurify() {
    var window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal();

    var DOMPurify = function DOMPurify(root) {
      return createDOMPurify(root);
    };

    /**
     * Version label, exposed for easier checks
     * if DOMPurify is up to date or not
     */
    DOMPurify.version = '2.0.7';

    /**
     * Array of elements that DOMPurify removed during sanitation.
     * Empty if nothing was removed.
     */
    DOMPurify.removed = [];

    if (!window || !window.document || window.document.nodeType !== 9) {
      // Not running in a browser, provide a factory function
      // so that you can pass your own Window
      DOMPurify.isSupported = false;

      return DOMPurify;
    }

    var originalDocument = window.document;
    var useDOMParser = false;
    var removeTitle = false;

    var document = window.document;
    var DocumentFragment = window.DocumentFragment,
        HTMLTemplateElement = window.HTMLTemplateElement,
        Node = window.Node,
        NodeFilter = window.NodeFilter,
        _window$NamedNodeMap = window.NamedNodeMap,
        NamedNodeMap = _window$NamedNodeMap === undefined ? window.NamedNodeMap || window.MozNamedAttrMap : _window$NamedNodeMap,
        Text = window.Text,
        Comment = window.Comment,
        DOMParser = window.DOMParser,
        TrustedTypes = window.TrustedTypes;

    // 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') {
      var template = document.createElement('template');
      if (template.content && template.content.ownerDocument) {
        document = template.content.ownerDocument;
      }
    }

    var trustedTypesPolicy = _createTrustedTypesPolicy(TrustedTypes, originalDocument);
    var emptyHTML = trustedTypesPolicy ? trustedTypesPolicy.createHTML('') : '';

    var _document = document,
        implementation = _document.implementation,
        createNodeIterator = _document.createNodeIterator,
        getElementsByTagName = _document.getElementsByTagName,
        createDocumentFragment = _document.createDocumentFragment;
    var importNode = originalDocument.importNode;


    var hooks = {};

    /**
     * Expose whether this browser supports running the full DOMPurify.
     */
    DOMPurify.isSupported = implementation && typeof implementation.createHTMLDocument !== 'undefined' && document.documentMode !== 9;

    var MUSTACHE_EXPR$$1 = MUSTACHE_EXPR,
        ERB_EXPR$$1 = ERB_EXPR,
        DATA_ATTR$$1 = DATA_ATTR,
        ARIA_ATTR$$1 = ARIA_ATTR,
        IS_SCRIPT_OR_DATA$$1 = IS_SCRIPT_OR_DATA,
        ATTR_WHITESPACE$$1 = ATTR_WHITESPACE;
    var IS_ALLOWED_URI$$1 = IS_ALLOWED_URI;

    /**
     * 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 */

    var ALLOWED_TAGS = null;
    var DEFAULT_ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray(html), _toConsumableArray(svg), _toConsumableArray(svgFilters), _toConsumableArray(mathMl), _toConsumableArray(text)));

    /* Allowed attribute names */
    var ALLOWED_ATTR = null;
    var DEFAULT_ALLOWED_ATTR = addToSet({}, [].concat(_toConsumableArray(html$1), _toConsumableArray(svg$1), _toConsumableArray(mathMl$1), _toConsumableArray(xml)));

    /* Explicitly forbidden tags (overrides ALLOWED_TAGS/ADD_TAGS) */
    var FORBID_TAGS = null;

    /* Explicitly forbidden attributes (overrides ALLOWED_ATTR/ADD_ATTR) */
    var FORBID_ATTR = null;

    /* Decide if ARIA attributes are okay */
    var ALLOW_ARIA_ATTR = true;

    /* Decide if custom data attributes are okay */
    var ALLOW_DATA_ATTR = true;

    /* Decide if unknown protocols are okay */
    var ALLOW_UNKNOWN_PROTOCOLS = false;

    /* Output should be safe for jQuery's $() factory? */
    var SAFE_FOR_JQUERY = false;

    /* Output should be safe for common template engines.
     * This means, DOMPurify removes data attributes, mustaches and ERB
     */
    var SAFE_FOR_TEMPLATES = false;

    /* Decide if document with <html>... should be returned */
    var WHOLE_DOCUMENT = false;

    /* Track whether config is already set on this instance of DOMPurify. */
    var 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 */
    var 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
     */
    var 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) */
    var RETURN_DOM_FRAGMENT = false;

    /* If `RETURN_DOM` or `RETURN_DOM_FRAGMENT` is enabled, decide if the returned DOM
     * `Node` is imported into the current `Document`. If this flag is not enabled the
     * `Node` will belong (its ownerDocument) to a fresh `HTMLDocument`, created by
     * DOMPurify. */
    var RETURN_DOM_IMPORT = false;

    /* Try to return a Trusted Type object instead of a string, retrun a string in
     * case Trusted Types are not supported  */
    var RETURN_TRUSTED_TYPE = false;

    /* Output should be free from DOM clobbering attacks? */
    var SANITIZE_DOM = true;

    /* Keep element content when removing element? */
    var 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 */
    var IN_PLACE = false;

    /* Allow usage of profiles like html, svg and mathMl */
    var USE_PROFILES = {};

    /* Tags to ignore content of when KEEP_CONTENT is true */
    var FORBID_CONTENTS = addToSet({}, ['annotation-xml', 'audio', 'colgroup', 'desc', 'foreignobject', 'head', 'iframe', 'math', 'mi', 'mn', 'mo', 'ms', 'mtext', 'noembed', 'noframes', 'plaintext', 'script', 'style', 'svg', 'template', 'thead', 'title', 'video', 'xmp']);

    /* Tags that are safe for data: URIs */
    var DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image']);

    /* Attributes safe for values like "javascript:" */
    var URI_SAFE_ATTRIBUTES = null;
    var DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'summary', 'title', 'value', 'style', 'xmlns']);

    /* Keep a reference to config to pass to hooks */
    var CONFIG = null;

    /* Ideally, do not touch anything below this line */
    /* ______________________________________________ */

    var formElement = document.createElement('form');

    /**
     * _parseConfig
     *
     * @param  {Object} cfg optional config literal
     */
        // eslint-disable-next-line complexity
    var _parseConfig = function _parseConfig(cfg) {
          if (CONFIG && CONFIG === cfg) {
            return;
          }

          /* Shield configuration object from tampering */
          if (!cfg || (typeof cfg === 'undefined' ? 'undefined' : _typeof(cfg)) !== 'object') {
            cfg = {};
          }

          /* Set configuration parameters */
          ALLOWED_TAGS = 'ALLOWED_TAGS' in cfg ? addToSet({}, cfg.ALLOWED_TAGS) : DEFAULT_ALLOWED_TAGS;
          ALLOWED_ATTR = 'ALLOWED_ATTR' in cfg ? addToSet({}, cfg.ALLOWED_ATTR) : DEFAULT_ALLOWED_ATTR;
          URI_SAFE_ATTRIBUTES = 'ADD_URI_SAFE_ATTR' in cfg ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), cfg.ADD_URI_SAFE_ATTR) : DEFAULT_URI_SAFE_ATTRIBUTES;
          FORBID_TAGS = 'FORBID_TAGS' in cfg ? addToSet({}, cfg.FORBID_TAGS) : {};
          FORBID_ATTR = 'FORBID_ATTR' in cfg ? addToSet({}, cfg.FORBID_ATTR) : {};
          USE_PROFILES = 'USE_PROFILES' in cfg ? 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
          SAFE_FOR_JQUERY = cfg.SAFE_FOR_JQUERY || false; // Default false
          SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false
          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_DOM_IMPORT = cfg.RETURN_DOM_IMPORT || 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
          KEEP_CONTENT = cfg.KEEP_CONTENT !== false; // Default true
          IN_PLACE = cfg.IN_PLACE || false; // Default false

          IS_ALLOWED_URI$$1 = cfg.ALLOWED_URI_REGEXP || IS_ALLOWED_URI$$1;

          if (SAFE_FOR_TEMPLATES) {
            ALLOW_DATA_ATTR = false;
          }

          if (RETURN_DOM_FRAGMENT) {
            RETURN_DOM = true;
          }

          /* Parse profile info */
          if (USE_PROFILES) {
            ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray(text)));
            ALLOWED_ATTR = [];
            if (USE_PROFILES.html === true) {
              addToSet(ALLOWED_TAGS, html);
              addToSet(ALLOWED_ATTR, html$1);
            }

            if (USE_PROFILES.svg === true) {
              addToSet(ALLOWED_TAGS, svg);
              addToSet(ALLOWED_ATTR, svg$1);
              addToSet(ALLOWED_ATTR, xml);
            }

            if (USE_PROFILES.svgFilters === true) {
              addToSet(ALLOWED_TAGS, svgFilters);
              addToSet(ALLOWED_ATTR, svg$1);
              addToSet(ALLOWED_ATTR, xml);
            }

            if (USE_PROFILES.mathMl === true) {
              addToSet(ALLOWED_TAGS, mathMl);
              addToSet(ALLOWED_ATTR, mathMl$1);
              addToSet(ALLOWED_ATTR, xml);
            }
          }

          /* Merge configuration parameters */
          if (cfg.ADD_TAGS) {
            if (ALLOWED_TAGS === DEFAULT_ALLOWED_TAGS) {
              ALLOWED_TAGS = clone(ALLOWED_TAGS);
            }

            addToSet(ALLOWED_TAGS, cfg.ADD_TAGS);
          }

          if (cfg.ADD_ATTR) {
            if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) {
              ALLOWED_ATTR = clone(ALLOWED_ATTR);
            }

            addToSet(ALLOWED_ATTR, cfg.ADD_ATTR);
          }

          if (cfg.ADD_URI_SAFE_ATTR) {
            addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR);
          }

          /* 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;
          }

          // Prevent further manipulation of configuration.
          // Not available in IE8, Safari 5, etc.
          if (freeze) {
            freeze(cfg);
          }

          CONFIG = cfg;
        };

    /**
     * _forceRemove
     *
     * @param  {Node} node a DOM node
     */
    var _forceRemove = function _forceRemove(node) {
      DOMPurify.removed.push({ element: node });
      try {
        node.parentNode.removeChild(node);
      } catch (error) {
        node.outerHTML = emptyHTML;
      }
    };

    /**
     * _removeAttribute
     *
     * @param  {String} name an Attribute name
     * @param  {Node} node a DOM node
     */
    var _removeAttribute = function _removeAttribute(name, node) {
      try {
        DOMPurify.removed.push({
          attribute: node.getAttributeNode(name),
          from: node
        });
      } catch (error) {
        DOMPurify.removed.push({
          attribute: null,
          from: node
        });
      }

      node.removeAttribute(name);
    };

    /**
     * _initDocument
     *
     * @param  {String} dirty a string of dirty markup
     * @return {Document} a DOM, filled with the dirty markup
     */
    var _initDocument = function _initDocument(dirty) {
      /* Create a HTML document */
      var doc = void 0;
      var leadingWhitespace = void 0;

      if (FORCE_BODY) {
        dirty = '<remove></remove>' + dirty;
      } else {
        /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */
        var matches = dirty.match(/^[\s]+/);
        leadingWhitespace = matches && matches[0];
        if (leadingWhitespace) {
          dirty = dirty.slice(leadingWhitespace.length);
        }
      }

      /* Use DOMParser to workaround Firefox bug (see comment below) */
      if (useDOMParser) {
        try {
          doc = new DOMParser().parseFromString(dirty, 'text/html');
        } catch (error) {}
      }

      /* Remove title to fix a mXSS bug in older MS Edge */
      if (removeTitle) {
        addToSet(FORBID_TAGS, ['title']);
      }

      /* Otherwise use createHTMLDocument, because DOMParser is unsafe in
      Safari (see comment below) */
      if (!doc || !doc.documentElement) {
        doc = implementation.createHTMLDocument('');
        var _doc = doc,
            body = _doc.body;

        body.parentNode.removeChild(body.parentNode.firstElementChild);
        body.outerHTML = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty;
      }

      if (dirty && leadingWhitespace) {
        doc.body.insertBefore(document.createTextNode(leadingWhitespace), doc.body.childNodes[0] || null);
      }

      /* Work on whole document or just its body */
      return getElementsByTagName.call(doc, WHOLE_DOCUMENT ? 'html' : 'body')[0];
    };

    // Firefox uses a different parser for innerHTML rather than
    // DOMParser (see https://bugzilla.mozilla.org/show_bug.cgi?id=1205631)
    // which means that you *must* use DOMParser, otherwise the output may
    // not be safe if used in a document.write context later.
    //
    // So we feature detect the Firefox bug and use the DOMParser if necessary.
    //
    // Chrome 77 and other versions ship an mXSS bug that caused a bypass to
    // happen. We now check for the mXSS trigger and react accordingly.
    if (DOMPurify.isSupported) {
      (function () {
        try {
          var doc = _initDocument('<svg><p><textarea><img src="</textarea><img src=x abc=1//">');
          if (doc.querySelector('svg img')) {
            useDOMParser = true;
          }
        } catch (error) {}
      })();

      (function () {
        try {
          var doc = _initDocument('<x/><title>&lt;/title&gt;&lt;img&gt;');
          if (/<\/title/.test(doc.querySelector('title').innerHTML)) {
            removeTitle = true;
          }
        } catch (error) {}
      })();
    }

    /**
     * _createIterator
     *
     * @param  {Document} root document/fragment to create iterator for
     * @return {Iterator} iterator instance
     */
    var _createIterator = function _createIterator(root) {
      return createNodeIterator.call(root.ownerDocument || root, root, NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT, function () {
        return NodeFilter.FILTER_ACCEPT;
      }, false);
    };

    /**
     * _isClobbered
     *
     * @param  {Node} elm element to check for clobbering attacks
     * @return {Boolean} true if clobbered, false if safe
     */
    var _isClobbered = function _isClobbered(elm) {
      if (elm instanceof Text || elm instanceof Comment) {
        return false;
      }

      if (typeof elm.nodeName !== 'string' || typeof elm.textContent !== 'string' || typeof elm.removeChild !== 'function' || !(elm.attributes instanceof NamedNodeMap) || typeof elm.removeAttribute !== 'function' || typeof elm.setAttribute !== 'function' || typeof elm.namespaceURI !== 'string') {
        return true;
      }

      return false;
    };

    /**
     * _isNode
     *
     * @param  {Node} obj object to check whether it's a DOM node
     * @return {Boolean} true is object is a DOM node
     */
    var _isNode = function _isNode(obj) {
      return (typeof Node === 'undefined' ? 'undefined' : _typeof(Node)) === 'object' ? obj instanceof Node : obj && (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && typeof obj.nodeType === 'number' && typeof obj.nodeName === 'string';
    };

    /**
     * _executeHook
     * Execute user configurable hooks
     *
     * @param  {String} entryPoint  Name of the hook's entry point
     * @param  {Node} currentNode node to work on with the hook
     * @param  {Object} data additional hook parameters
     */
    var _executeHook = function _executeHook(entryPoint, currentNode, data) {
      if (!hooks[entryPoint]) {
        return;
      }

      hooks[entryPoint].forEach(function (hook) {
        hook.call(DOMPurify, currentNode, data, CONFIG);
      });
    };

    /**
     * _sanitizeElements
     *
     * @protect nodeName
     * @protect textContent
     * @protect removeChild
     *
     * @param   {Node} currentNode to check for permission to exist
     * @return  {Boolean} true if node was killed, false if left alive
     */
        // eslint-disable-next-line complexity
    var _sanitizeElements = function _sanitizeElements(currentNode) {
          var content = void 0;

          /* Execute a hook if present */
          _executeHook('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 */
          var tagName = currentNode.nodeName.toLowerCase();

          /* Execute a hook if present */
          _executeHook('uponSanitizeElement', currentNode, {
            tagName: tagName,
            allowedTags: ALLOWED_TAGS
          });

          /* Take care of an mXSS pattern using p, br inside svg, math */
          if ((tagName === 'svg' || tagName === 'math') && currentNode.querySelectorAll('p, br').length !== 0) {
            _forceRemove(currentNode);
            return true;
          }

          /* Remove element if anything forbids its presence */
          if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) {
            /* Keep content except for black-listed elements */
            if (KEEP_CONTENT && !FORBID_CONTENTS[tagName] && typeof currentNode.insertAdjacentHTML === 'function') {
              try {
                var htmlToInsert = currentNode.innerHTML;
                currentNode.insertAdjacentHTML('AfterEnd', trustedTypesPolicy ? trustedTypesPolicy.createHTML(htmlToInsert) : htmlToInsert);
              } catch (error) {}
            }

            _forceRemove(currentNode);
            return true;
          }

          /* Remove in case a noscript/noembed XSS is suspected */
          if (tagName === 'noscript' && /<\/noscript/i.test(currentNode.innerHTML)) {
            _forceRemove(currentNode);
            return true;
          }

          if (tagName === 'noembed' && /<\/noembed/i.test(currentNode.innerHTML)) {
            _forceRemove(currentNode);
            return true;
          }

          /* Convert markup to cover jQuery behavior */
          if (SAFE_FOR_JQUERY && !currentNode.firstElementChild && (!currentNode.content || !currentNode.content.firstElementChild) && /</g.test(currentNode.textContent)) {
            DOMPurify.removed.push({ element: currentNode.cloneNode() });
            if (currentNode.innerHTML) {
              currentNode.innerHTML = currentNode.innerHTML.replace(/</g, '&lt;');
            } else {
              currentNode.innerHTML = currentNode.textContent.replace(/</g, '&lt;');
            }
          }

          /* Sanitize element content to be template-safe */
          if (SAFE_FOR_TEMPLATES && currentNode.nodeType === 3) {
            /* Get the element's text content */
            content = currentNode.textContent;
            content = content.replace(MUSTACHE_EXPR$$1, ' ');
            content = content.replace(ERB_EXPR$$1, ' ');
            if (currentNode.textContent !== content) {
              DOMPurify.removed.push({ element: currentNode.cloneNode() });
              currentNode.textContent = content;
            }
          }

          /* Execute a hook if present */
          _executeHook('afterSanitizeElements', currentNode, null);

          return false;
        };

    /**
     * _isValidAttribute
     *
     * @param  {string} lcTag Lowercase tag name of containing element.
     * @param  {string} lcName Lowercase attribute name.
     * @param  {string} value Attribute value.
     * @return {Boolean} Returns true if `value` is valid, otherwise false.
     */
        // eslint-disable-next-line complexity
    var _isValidAttribute = function _isValidAttribute(lcTag, lcName, value) {
          /* Make sure attribute cannot clobber */
          if (SANITIZE_DOM && (lcName === 'id' || lcName === 'name') && (value in document || value in formElement)) {
            return false;
          }

          /* 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 && DATA_ATTR$$1.test(lcName)) {
            // This attribute is safe
          } else if (ALLOW_ARIA_ATTR && ARIA_ATTR$$1.test(lcName)) {
            // This attribute is safe
            /* Otherwise, check the name is permitted */
          } else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) {
            return false;

            /* Check value is safe. First, is attr inert? If so, is safe */
          } else if (URI_SAFE_ATTRIBUTES[lcName]) {
            // This attribute is safe
            /* Check no script, data or unknown possibly unsafe URI
              unless we know URI values are safe for that attribute */
          } else if (IS_ALLOWED_URI$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) {
            // This attribute is safe
            /* Keep image data URIs alive if src/xlink:href is allowed */
            /* Further prevent gadget XSS for dynamically built script tags */
          } else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && value.indexOf('data:') === 0 && DATA_URI_TAGS[lcTag]) {
            // This attribute is safe
            /* Allow unknown protocols: This provides support for links that
              are handled by protocol handlers which may be unknown ahead of
              time, e.g. fb:, spotify: */
          } else if (ALLOW_UNKNOWN_PROTOCOLS && !IS_SCRIPT_OR_DATA$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) {
            // This attribute is safe
            /* Check for binary attributes */
            // eslint-disable-next-line no-negated-condition
          } else if (!value) {
            // Binary attributes are safe at this point
            /* Anything else, presume unsafe, do not add it back */
          } else {
            return false;
          }

          return true;
        };

    /**
     * _sanitizeAttributes
     *
     * @protect attributes
     * @protect nodeName
     * @protect removeAttribute
     * @protect setAttribute
     *
     * @param  {Node} currentNode to sanitize
     */
        // eslint-disable-next-line complexity
    var _sanitizeAttributes = function _sanitizeAttributes(currentNode) {
          var attr = void 0;
          var value = void 0;
          var lcName = void 0;
          var idAttr = void 0;
          var l = void 0;
          /* Execute a hook if present */
          _executeHook('beforeSanitizeAttributes', currentNode, null);

          var attributes = currentNode.attributes;

          /* Check if we have attributes; if not we might have a text node */

          if (!attributes) {
            return;
          }

          var hookEvent = {
            attrName: '',
            attrValue: '',
            keepAttr: true,
            allowedAttributes: ALLOWED_ATTR
          };
          l = attributes.length;

          /* Go backwards over all attributes; safely remove bad ones */
          while (l--) {
            attr = attributes[l];
            var _attr = attr,
                name = _attr.name,
                namespaceURI = _attr.namespaceURI;

            value = attr.value.trim();
            lcName = name.toLowerCase();

            /* Execute a hook if present */
            hookEvent.attrName = lcName;
            hookEvent.attrValue = value;
            hookEvent.keepAttr = true;
            _executeHook('uponSanitizeAttribute', currentNode, hookEvent);
            value = hookEvent.attrValue;

            /* Remove attribute */
            // Safari (iOS + Mac), last tested v8.0.5, crashes if you try to
            // remove a "name" attribute from an <img> tag that has an "id"
            // attribute at the time.
            if (lcName === 'name' && currentNode.nodeName === 'IMG' && attributes.id) {
              idAttr = attributes.id;
              attributes = apply(arraySlice, attributes, []);
              _removeAttribute('id', currentNode);
              _removeAttribute(name, currentNode);
              if (attributes.indexOf(idAttr) > l) {
                currentNode.setAttribute('id', idAttr.value);
              }
            } else if (
                // This works around a bug in Safari, where input[type=file]
                // cannot be dynamically set after type has been removed
                currentNode.nodeName === 'INPUT' && lcName === 'type' && value === 'file' && hookEvent.keepAttr && (ALLOWED_ATTR[lcName] || !FORBID_ATTR[lcName])) {
              continue;
            } else {
              // This avoids a crash in Safari v9.0 with double-ids.
              // The trick is to first set the id to be empty and then to
              // remove the attribute
              if (name === 'id') {
                currentNode.setAttribute(name, '');
              }

              _removeAttribute(name, currentNode);
            }

            /* Did the hooks approve of the attribute? */
            if (!hookEvent.keepAttr) {
              continue;
            }

            /* Take care of an mXSS pattern using namespace switches */
            if (/svg|math/i.test(currentNode.namespaceURI) && new RegExp('</(' + Object.keys(FORBID_CONTENTS).join('|') + ')', 'i').test(value)) {
              _removeAttribute(name, currentNode);
              continue;
            }

            /* Sanitize attribute content to be template-safe */
            if (SAFE_FOR_TEMPLATES) {
              value = value.replace(MUSTACHE_EXPR$$1, ' ');
              value = value.replace(ERB_EXPR$$1, ' ');
            }

            /* Is `value` valid for this attribute? */
            var lcTag = currentNode.nodeName.toLowerCase();
            if (!_isValidAttribute(lcTag, lcName, value)) {
              continue;
            }

            /* Handle invalid data-* attribute set by try-catching it */
            try {
              if (namespaceURI) {
                currentNode.setAttributeNS(namespaceURI, name, value);
              } else {
                /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. "x-schema". */
                currentNode.setAttribute(name, value);
              }

              DOMPurify.removed.pop();
            } catch (error) {}
          }

          /* Execute a hook if present */
          _executeHook('afterSanitizeAttributes', currentNode, null);
        };

    /**
     * _sanitizeShadowDOM
     *
     * @param  {DocumentFragment} fragment to iterate over recursively
     */
    var _sanitizeShadowDOM = function _sanitizeShadowDOM(fragment) {
      var shadowNode = void 0;
      var shadowIterator = _createIterator(fragment);

      /* Execute a hook if present */
      _executeHook('beforeSanitizeShadowDOM', fragment, null);

      while (shadowNode = shadowIterator.nextNode()) {
        /* Execute a hook if present */
        _executeHook('uponSanitizeShadowNode', shadowNode, null);

        /* Sanitize tags and elements */
        if (_sanitizeElements(shadowNode)) {
          continue;
        }

        /* Deep shadow DOM detected */
        if (shadowNode.content instanceof DocumentFragment) {
          _sanitizeShadowDOM(shadowNode.content);
        }

        /* Check attributes, sanitize if necessary */
        _sanitizeAttributes(shadowNode);
      }

      /* Execute a hook if present */
      _executeHook('afterSanitizeShadowDOM', fragment, null);
    };

    /**
     * Sanitize
     * Public method providing core sanitation functionality
     *
     * @param {String|Node} dirty string or DOM node
     * @param {Object} configuration object
     */
    // eslint-disable-next-line complexity
    DOMPurify.sanitize = function (dirty, cfg) {
      var body = void 0;
      var importedNode = void 0;
      var currentNode = void 0;
      var oldNode = void 0;
      var returnNode = void 0;
      /* 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 */
      if (!dirty) {
        dirty = '<!-->';
      }

      /* Stringify, in case dirty is an object */
      if (typeof dirty !== 'string' && !_isNode(dirty)) {
        // eslint-disable-next-line no-negated-condition
        if (typeof dirty.toString !== 'function') {
          throw new TypeError('toString is not a function');
        } else {
          dirty = dirty.toString();
          if (typeof dirty !== 'string') {
            throw new TypeError('dirty is not a string, aborting');
          }
        }
      }

      /* Check we can run. Otherwise fall back or ignore */
      if (!DOMPurify.isSupported) {
        if (_typeof(window.toStaticHTML) === 'object' || typeof window.toStaticHTML === 'function') {
          if (typeof dirty === 'string') {
            return window.toStaticHTML(dirty);
          }

          if (_isNode(dirty)) {
            return window.toStaticHTML(dirty.outerHTML);
          }
        }

        return dirty;
      }

      /* Assign config vars */
      if (!SET_CONFIG) {
        _parseConfig(cfg);
      }

      /* Clean up removed elements */
      DOMPurify.removed = [];

      if (IN_PLACE) {
        /* No special handling necessary for in-place sanitization */
      } 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 === 1 && 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-node-append
          body.appendChild(importedNode);
        }
      } else {
        /* Exit directly if we have nothing to do */
        if (!RETURN_DOM && !SAFE_FOR_TEMPLATES && !WHOLE_DOCUMENT && RETURN_TRUSTED_TYPE && dirty.indexOf('<') === -1) {
          return trustedTypesPolicy ? 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 : emptyHTML;
        }
      }

      /* Remove first element node (ours) if FORCE_BODY is set */
      if (body && FORCE_BODY) {
        _forceRemove(body.firstChild);
      }

      /* Get node iterator */
      var nodeIterator = _createIterator(IN_PLACE ? dirty : body);

      /* Now start iterating over the created document */
      while (currentNode = nodeIterator.nextNode()) {
        /* Fix IE's strange behavior with manipulated textNodes #89 */
        if (currentNode.nodeType === 3 && currentNode === oldNode) {
          continue;
        }

        /* Sanitize tags and elements */
        if (_sanitizeElements(currentNode)) {
          continue;
        }

        /* Shadow DOM detected, sanitize it */
        if (currentNode.content instanceof DocumentFragment) {
          _sanitizeShadowDOM(currentNode.content);
        }

        /* Check attributes, sanitize if necessary */
        _sanitizeAttributes(currentNode);

        oldNode = currentNode;
      }

      oldNode = null;

      /* If we sanitized `dirty` in-place, return it. */
      if (IN_PLACE) {
        return dirty;
      }

      /* Return sanitized string or DOM */
      if (RETURN_DOM) {
        if (RETURN_DOM_FRAGMENT) {
          returnNode = createDocumentFragment.call(body.ownerDocument);

          while (body.firstChild) {
            // eslint-disable-next-line unicorn/prefer-node-append
            returnNode.appendChild(body.firstChild);
          }
        } else {
          returnNode = body;
        }

        if (RETURN_DOM_IMPORT) {
          /* 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;
      }

      var serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML;

      /* Sanitize final string template-safe */
      if (SAFE_FOR_TEMPLATES) {
        serializedHTML = serializedHTML.replace(MUSTACHE_EXPR$$1, ' ');
        serializedHTML = serializedHTML.replace(ERB_EXPR$$1, ' ');
      }

      return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML;
    };

    /**
     * Public method to set the configuration once
     * setConfig
     *
     * @param {Object} cfg configuration object
     */
    DOMPurify.setConfig = function (cfg) {
      _parseConfig(cfg);
      SET_CONFIG = true;
    };

    /**
     * Public method to remove the configuration
     * clearConfig
     *
     */
    DOMPurify.clearConfig = function () {
      CONFIG = null;
      SET_CONFIG = false;
    };

    /**
     * Public method to check if an attribute value is valid.
     * Uses last set config, if any. Otherwise, uses config defaults.
     * isValidAttribute
     *
     * @param  {string} tag Tag name of containing element.
     * @param  {string} attr Attribute name.
     * @param  {string} value Attribute value.
     * @return {Boolean} Returns true if `value` is valid. Otherwise, returns false.
     */
    DOMPurify.isValidAttribute = function (tag, attr, value) {
      /* Initialize shared config vars if necessary. */
      if (!CONFIG) {
        _parseConfig({});
      }

      var lcTag = tag.toLowerCase();
      var lcName = attr.toLowerCase();
      return _isValidAttribute(lcTag, lcName, value);
    };

    /**
     * AddHook
     * Public method to add DOMPurify hooks
     *
     * @param {String} entryPoint entry point for the hook to add
     * @param {Function} hookFunction function to execute
     */
    DOMPurify.addHook = function (entryPoint, hookFunction) {
      if (typeof hookFunction !== 'function') {
        return;
      }

      hooks[entryPoint] = hooks[entryPoint] || [];
      hooks[entryPoint].push(hookFunction);
    };

    /**
     * RemoveHook
     * Public method to remove a DOMPurify hook at a given entryPoint
     * (pops it from the stack of hooks if more are present)
     *
     * @param {String} entryPoint entry point for the hook to remove
     */
    DOMPurify.removeHook = function (entryPoint) {
      if (hooks[entryPoint]) {
        hooks[entryPoint].pop();
      }
    };

    /**
     * RemoveHooks
     * Public method to remove all DOMPurify hooks at a given entryPoint
     *
     * @param  {String} entryPoint entry point for the hooks to remove
     */
    DOMPurify.removeHooks = function (entryPoint) {
      if (hooks[entryPoint]) {
        hooks[entryPoint] = [];
      }
    };

    /**
     * RemoveAllHooks
     * Public method to remove all DOMPurify hooks
     *
     */
    DOMPurify.removeAllHooks = function () {
      hooks = {};
    };

    return DOMPurify;
  }

  var purify = createDOMPurify();

  return purify;

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