// The below polyfills are from open-source libraries
//
// XMLDOM
// https://github.com/xmldom/xmldom
// MIT license: https://github.com/xmldom/xmldom/blob/master/LICENSE
//
// WGXPATH
// https://github.com/google/wicked-good-xpath
// MIT license: https://github.com/google/wicked-good-xpath/blob/master/LICENSE
//
function find(e,t,n){if(void 0===n&&(n=Array.prototype),e&&"function"==typeof n.find)return n.find.call(e,t);for(var r=0;r<e.length;r++)if(Object.prototype.hasOwnProperty.call(e,r)){var o=e[r];if(t.call(void 0,o,r,e))return o}}function freeze(e,t){return void 0===t&&(t=Object),t&&"function"==typeof t.freeze?t.freeze(e):e}function assign(e,t){if(null===e||"object"!=typeof e)throw new TypeError("target is not an object");for(var n in t)Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n]);return e}var MIME_TYPE=freeze({HTML:"text/html",isHTML:function(e){return e===MIME_TYPE.HTML},XML_APPLICATION:"application/xml",XML_TEXT:"text/xml",XML_XHTML_APPLICATION:"application/xhtml+xml",XML_SVG_IMAGE:"image/svg+xml"}),NAMESPACE=freeze({HTML:"http://www.w3.org/1999/xhtml",isHTML:function(e){return e===NAMESPACE.HTML},SVG:"http://www.w3.org/2000/svg",XML:"http://www.w3.org/XML/1998/namespace",XMLNS:"http://www.w3.org/2000/xmlns/"});function notEmptyString(e){return""!==e}function splitOnASCIIWhitespace(e){return e?e.split(/[\t\n\f\r ]+/).filter(notEmptyString):[]}function orderedSetReducer(e,t){return e.hasOwnProperty(t)||(e[t]=!0),e}function toOrderedSet(e){if(!e)return[];e=splitOnASCIIWhitespace(e);return Object.keys(e.reduce(orderedSetReducer,{}))}function arrayIncludes(t){return function(e){return t&&-1!==t.indexOf(e)}}function copy(e,t){for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n])}function _extends(e,t){var n=e.prototype;function r(){}n instanceof t||(r.prototype=t.prototype,copy(n,r=new r),e.prototype=n=r),n.constructor!=e&&("function"!=typeof e&&console.error("unknown Class:"+e),n.constructor=e)}var NodeType={},ELEMENT_NODE=NodeType.ELEMENT_NODE=1,ATTRIBUTE_NODE=NodeType.ATTRIBUTE_NODE=2,TEXT_NODE=NodeType.TEXT_NODE=3,CDATA_SECTION_NODE=NodeType.CDATA_SECTION_NODE=4,ENTITY_REFERENCE_NODE=NodeType.ENTITY_REFERENCE_NODE=5,ENTITY_NODE=NodeType.ENTITY_NODE=6,PROCESSING_INSTRUCTION_NODE=NodeType.PROCESSING_INSTRUCTION_NODE=7,COMMENT_NODE=NodeType.COMMENT_NODE=8,DOCUMENT_NODE=NodeType.DOCUMENT_NODE=9,DOCUMENT_TYPE_NODE=NodeType.DOCUMENT_TYPE_NODE=10,DOCUMENT_FRAGMENT_NODE=NodeType.DOCUMENT_FRAGMENT_NODE=11,NOTATION_NODE=NodeType.NOTATION_NODE=12,ExceptionCode={},ExceptionMessage={},INDEX_SIZE_ERR=ExceptionCode.INDEX_SIZE_ERR=(ExceptionMessage[1]="Index size error",1),DOMSTRING_SIZE_ERR=ExceptionCode.DOMSTRING_SIZE_ERR=(ExceptionMessage[2]="DOMString size error",2),HIERARCHY_REQUEST_ERR=ExceptionCode.HIERARCHY_REQUEST_ERR=(ExceptionMessage[3]="Hierarchy request error",3),WRONG_DOCUMENT_ERR=ExceptionCode.WRONG_DOCUMENT_ERR=(ExceptionMessage[4]="Wrong document",4),INVALID_CHARACTER_ERR=ExceptionCode.INVALID_CHARACTER_ERR=(ExceptionMessage[5]="Invalid character",5),NO_DATA_ALLOWED_ERR=ExceptionCode.NO_DATA_ALLOWED_ERR=(ExceptionMessage[6]="No data allowed",6),NO_MODIFICATION_ALLOWED_ERR=ExceptionCode.NO_MODIFICATION_ALLOWED_ERR=(ExceptionMessage[7]="No modification allowed",7),NOT_FOUND_ERR=ExceptionCode.NOT_FOUND_ERR=(ExceptionMessage[8]="Not found",8),NOT_SUPPORTED_ERR=ExceptionCode.NOT_SUPPORTED_ERR=(ExceptionMessage[9]="Not supported",9),INUSE_ATTRIBUTE_ERR=ExceptionCode.INUSE_ATTRIBUTE_ERR=(ExceptionMessage[10]="Attribute in use",10),INVALID_STATE_ERR=ExceptionCode.INVALID_STATE_ERR=(ExceptionMessage[11]="Invalid state",11),SYNTAX_ERR=ExceptionCode.SYNTAX_ERR=(ExceptionMessage[12]="Syntax error",12),INVALID_MODIFICATION_ERR=ExceptionCode.INVALID_MODIFICATION_ERR=(ExceptionMessage[13]="Invalid modification",13),NAMESPACE_ERR=ExceptionCode.NAMESPACE_ERR=(ExceptionMessage[14]="Invalid namespace",14),INVALID_ACCESS_ERR=ExceptionCode.INVALID_ACCESS_ERR=(ExceptionMessage[15]="Invalid access",15);function DOMException(e,t){var n;return t instanceof Error?n=t:(n=this,Error.call(this,ExceptionMessage[e]),this.message=ExceptionMessage[e],Error.captureStackTrace&&Error.captureStackTrace(this,DOMException)),n.code=e,t&&(this.message=this.message+": "+t),n}function NodeList(){}function LiveNodeList(e,t){this._node=e,this._refresh=t,_updateLiveList(this)}function _updateLiveList(e){var t,n=e._node._inc||e._node.ownerDocument._inc;e._inc!=n&&(t=e._refresh(e._node),__set__(e,"length",t.length),copy(t,e),e._inc=n)}function NamedNodeMap(){}function _findNodeIndex(e,t){for(var n=e.length;n--;)if(e[n]===t)return n}function _addNamedNode(e,t,n,r){r?t[_findNodeIndex(t,r)]=n:t[t.length++]=n,!e||(t=(n.ownerElement=e).ownerDocument)&&(r&&_onRemoveAttribute(t,e,r),_onAddAttribute(t,e,n))}function _removeNamedNode(e,t,n){var r=_findNodeIndex(t,n);if(!(0<=r))throw new DOMException(NOT_FOUND_ERR,new Error(e.tagName+"@"+n));for(var o,i=t.length-1;r<i;)t[r]=t[++r];t.length=i,!e||(o=e.ownerDocument)&&(_onRemoveAttribute(o,e,n),n.ownerElement=null)}function DOMImplementation(){}function Node(){}function _xmlEncoder(e){return("<"==e?"&lt;":">"==e&&"&gt;")||"&"==e&&"&amp;"||'"'==e&&"&quot;"||"&#"+e.charCodeAt()+";"}function _visitNode(e,t){if(t(e))return!0;if(e=e.firstChild)do{if(_visitNode(e,t))return!0}while(e=e.nextSibling)}function Document(){this.ownerDocument=this}function _onAddAttribute(e,t,n){e&&e._inc++,n.namespaceURI===NAMESPACE.XMLNS&&(t._nsMap[n.prefix?n.localName:""]=n.value)}function _onRemoveAttribute(e,t,n,r){e&&e._inc++,n.namespaceURI===NAMESPACE.XMLNS&&delete t._nsMap[n.prefix?n.localName:""]}function _onUpdateChild(e,t,n){if(e&&e._inc){e._inc++;var r=t.childNodes;if(n)r[r.length++]=n;else{for(var o=t.firstChild,i=0;o;)o=(r[i++]=o).nextSibling;r.length=i,delete r[r.length]}}}function _removeChild(e,t){var n=t.previousSibling,r=t.nextSibling;return n?n.nextSibling=r:e.firstChild=r,r?r.previousSibling=n:e.lastChild=n,t.parentNode=null,t.previousSibling=null,t.nextSibling=null,_onUpdateChild(e.ownerDocument,e),t}function hasValidParentNodeType(e){return e&&(e.nodeType===Node.DOCUMENT_NODE||e.nodeType===Node.DOCUMENT_FRAGMENT_NODE||e.nodeType===Node.ELEMENT_NODE)}function hasInsertableNodeType(e){return e&&(isElementNode(e)||isTextNode(e)||isDocTypeNode(e)||e.nodeType===Node.DOCUMENT_FRAGMENT_NODE||e.nodeType===Node.COMMENT_NODE||e.nodeType===Node.PROCESSING_INSTRUCTION_NODE)}function isDocTypeNode(e){return e&&e.nodeType===Node.DOCUMENT_TYPE_NODE}function isElementNode(e){return e&&e.nodeType===Node.ELEMENT_NODE}function isTextNode(e){return e&&e.nodeType===Node.TEXT_NODE}function isElementInsertionPossible(e,t){var n=e.childNodes||[];if(find(n,isElementNode)||isDocTypeNode(t))return!1;e=find(n,isDocTypeNode);return!(t&&e&&n.indexOf(e)>n.indexOf(t))}function isElementReplacementPossible(e,t){var n=e.childNodes||[];if(find(n,function(e){return isElementNode(e)&&e!==t}))return!1;e=find(n,isDocTypeNode);return!(t&&e&&n.indexOf(e)>n.indexOf(t))}function assertPreInsertionValidity1to5(e,t,n){if(!hasValidParentNodeType(e))throw new DOMException(HIERARCHY_REQUEST_ERR,"Unexpected parent node type "+e.nodeType);if(n&&n.parentNode!==e)throw new DOMException(NOT_FOUND_ERR,"child not in parent");if(!hasInsertableNodeType(t)||isDocTypeNode(t)&&e.nodeType!==Node.DOCUMENT_NODE)throw new DOMException(HIERARCHY_REQUEST_ERR,"Unexpected node type "+t.nodeType+" for parent node type "+e.nodeType)}function assertPreInsertionValidityInDocument(e,t,n){var r=e.childNodes||[],o=t.childNodes||[];if(t.nodeType===Node.DOCUMENT_FRAGMENT_NODE){var i=o.filter(isElementNode);if(1<i.length||find(o,isTextNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"More than one element or text in fragment");if(1===i.length&&!isElementInsertionPossible(e,n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Element in fragment can not be inserted before doctype")}if(isElementNode(t)&&!isElementInsertionPossible(e,n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one element can be added and only after doctype");if(isDocTypeNode(t)){if(find(r,isDocTypeNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one doctype is allowed");t=find(r,isElementNode);if(n&&r.indexOf(t)<r.indexOf(n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can only be inserted before an element");if(!n&&t)throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can not be appended since element is present")}}function assertPreReplacementValidityInDocument(e,t,n){var r=e.childNodes||[],o=t.childNodes||[];if(t.nodeType===Node.DOCUMENT_FRAGMENT_NODE){var i=o.filter(isElementNode);if(1<i.length||find(o,isTextNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"More than one element or text in fragment");if(1===i.length&&!isElementReplacementPossible(e,n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Element in fragment can not be inserted before doctype")}if(isElementNode(t)&&!isElementReplacementPossible(e,n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one element can be added and only after doctype");if(isDocTypeNode(t)){if(find(r,function(e){return isDocTypeNode(e)&&e!==n}))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one doctype is allowed");t=find(r,isElementNode);if(n&&r.indexOf(t)<r.indexOf(n))throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can only be inserted before an element")}}function _insertBefore(e,t,n,r){assertPreInsertionValidity1to5(e,t,n),e.nodeType===Node.DOCUMENT_NODE&&(r||assertPreInsertionValidityInDocument)(e,t,n);r=t.parentNode;if(r&&r.removeChild(t),t.nodeType===DOCUMENT_FRAGMENT_NODE){var o=t.firstChild;if(null==o)return t;var i=t.lastChild}else o=i=t;r=n?n.previousSibling:e.lastChild;for(o.previousSibling=r,i.nextSibling=n,r?r.nextSibling=o:e.firstChild=o,null==n?e.lastChild=i:n.previousSibling=i;o.parentNode=e,o!==i&&(o=o.nextSibling););return _onUpdateChild(e.ownerDocument||e,e),t.nodeType==DOCUMENT_FRAGMENT_NODE&&(t.firstChild=t.lastChild=null),t}function _appendSingleChild(e,t){return t.parentNode&&t.parentNode.removeChild(t),t.parentNode=e,t.previousSibling=e.lastChild,t.nextSibling=null,t.previousSibling?t.previousSibling.nextSibling=t:e.firstChild=t,e.lastChild=t,_onUpdateChild(e.ownerDocument,e,t),t}function Element(){this._nsMap={}}function Attr(){}function CharacterData(){}function Text(){}function Comment(){}function CDATASection(){}function DocumentType(){}function Notation(){}function Entity(){}function EntityReference(){}function DocumentFragment(){}function ProcessingInstruction(){}function XMLSerializer(){}function nodeSerializeToString(e,t){var n,r=[],o=9==this.nodeType&&this.documentElement||this,i=o.prefix,a=o.namespaceURI;return a&&null==i&&null==(i=o.lookupPrefix(a))&&(n=[{namespace:a,prefix:null}]),serializeToString(this,r,e,t,n),r.join("")}function needNamespaceDefine(e,t,n){var r=e.prefix||"",o=e.namespaceURI;if(!o)return!1;if("xml"===r&&o===NAMESPACE.XML||o===NAMESPACE.XMLNS)return!1;for(var i=n.length;i--;){var a=n[i];if(a.prefix===r)return a.namespace!==o}return!0}function addSerializedAttribute(e,t,n){e.push(" ",t,'="',n.replace(/[<>&"\t\n\r]/g,_xmlEncoder),'"')}function serializeToString(e,t,n,r,o){if(o=o||[],r){if(!(e=r(e)))return;if("string"==typeof e)return void t.push(e)}switch(e.nodeType){case ELEMENT_NODE:var i=e.attributes,a=i.length,s=e.firstChild,c=e.tagName,u=c;if(!(n=NAMESPACE.isHTML(e.namespaceURI)||n)&&!e.prefix&&e.namespaceURI){for(var l,d=0;d<i.length;d++)if("xmlns"===i.item(d).name){l=i.item(d).value;break}if(!l)for(var p=o.length-1;0<=p;p--)if(""===(E=o[p]).prefix&&E.namespace===e.namespaceURI){l=E.namespace;break}if(l!==e.namespaceURI)for(var E,p=o.length-1;0<=p;p--)if((E=o[p]).namespace===e.namespaceURI){E.prefix&&(u=E.prefix+":"+c);break}}t.push("<",u);for(var N=0;N<a;N++)"xmlns"==(m=i.item(N)).prefix?o.push({prefix:m.localName,namespace:m.value}):"xmlns"==m.nodeName&&o.push({prefix:"",namespace:m.value});for(var m,f,h,N=0;N<a;N++)needNamespaceDefine(m=i.item(N),n,o)&&(addSerializedAttribute(t,(f=m.prefix||"")?"xmlns:"+f:"xmlns",h=m.namespaceURI),o.push({prefix:f,namespace:h})),serializeToString(m,t,n,r,o);if(c===u&&needNamespaceDefine(e,n,o)&&(addSerializedAttribute(t,(f=e.prefix||"")?"xmlns:"+f:"xmlns",h=e.namespaceURI),o.push({prefix:f,namespace:h})),s||n&&!/^(?:meta|link|img|br|hr|input)$/i.test(c)){if(t.push(">"),n&&/^script$/i.test(c))for(;s;)s.data?t.push(s.data):serializeToString(s,t,n,r,o.slice()),s=s.nextSibling;else for(;s;)serializeToString(s,t,n,r,o.slice()),s=s.nextSibling;t.push("</",u,">")}else t.push("/>");return;case DOCUMENT_NODE:case DOCUMENT_FRAGMENT_NODE:for(s=e.firstChild;s;)serializeToString(s,t,n,r,o.slice()),s=s.nextSibling;return;case ATTRIBUTE_NODE:return addSerializedAttribute(t,e.name,e.value);case TEXT_NODE:return t.push(e.data.replace(/[<&>]/g,_xmlEncoder));case CDATA_SECTION_NODE:return t.push("<![CDATA[",e.data,"]]>");case COMMENT_NODE:return t.push("\x3c!--",e.data,"--\x3e");case DOCUMENT_TYPE_NODE:var T=e.publicId,_=e.systemId;return t.push("<!DOCTYPE ",e.name),void(T?(t.push(" PUBLIC ",T),_&&"."!=_&&t.push(" ",_),t.push(">")):_&&"."!=_?t.push(" SYSTEM ",_,">"):((_=e.internalSubset)&&t.push(" [",_,"]"),t.push(">")));case PROCESSING_INSTRUCTION_NODE:return t.push("<?",e.target," ",e.data,"?>");case ENTITY_REFERENCE_NODE:return t.push("&",e.nodeName,";");default:t.push("??",e.nodeName)}}function importNode(e,t,n){var r;switch(t.nodeType){case ELEMENT_NODE:(r=t.cloneNode(!1)).ownerDocument=e;case DOCUMENT_FRAGMENT_NODE:break;case ATTRIBUTE_NODE:n=!0}if((r=r||t.cloneNode(!1)).ownerDocument=e,r.parentNode=null,n)for(var o=t.firstChild;o;)r.appendChild(importNode(e,o,n)),o=o.nextSibling;return r}function cloneNode(e,t,n){var r,o,i=new t.constructor;for(r in t)!Object.prototype.hasOwnProperty.call(t,r)||"object"!=typeof(o=t[r])&&o!=i[r]&&(i[r]=o);switch(t.childNodes&&(i.childNodes=new NodeList),i.ownerDocument=e,i.nodeType){case ELEMENT_NODE:var a=t.attributes,s=i.attributes=new NamedNodeMap,c=a.length;s._ownerElement=i;for(var u=0;u<c;u++)i.setAttributeNode(cloneNode(e,a.item(u),!0));break;case ATTRIBUTE_NODE:n=!0}if(n)for(var l=t.firstChild;l;)i.appendChild(cloneNode(e,l,n)),l=l.nextSibling;return i}function __set__(e,t,n){e[t]=n}DOMException.prototype=Error.prototype,copy(ExceptionCode,DOMException),NodeList.prototype={length:0,item:function(e){return this[e]||null},toString:function(e,t){for(var n=[],r=0;r<this.length;r++)serializeToString(this[r],n,e,t);return n.join("")},filter:function(e){return Array.prototype.filter.call(this,e)},indexOf:function(e){return Array.prototype.indexOf.call(this,e)}},LiveNodeList.prototype.item=function(e){return _updateLiveList(this),this[e]},_extends(LiveNodeList,NodeList),NamedNodeMap.prototype={length:0,item:NodeList.prototype.item,getNamedItem:function(e){for(var t=this.length;t--;){var n=this[t];if(n.nodeName==e)return n}},setNamedItem:function(e){var t=e.ownerElement;if(t&&t!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);t=this.getNamedItem(e.nodeName);return _addNamedNode(this._ownerElement,this,e,t),t},setNamedItemNS:function(e){var t=e.ownerElement;if(t&&t!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);return t=this.getNamedItemNS(e.namespaceURI,e.localName),_addNamedNode(this._ownerElement,this,e,t),t},removeNamedItem:function(e){e=this.getNamedItem(e);return _removeNamedNode(this._ownerElement,this,e),e},removeNamedItemNS:function(e,t){t=this.getNamedItemNS(e,t);return _removeNamedNode(this._ownerElement,this,t),t},getNamedItemNS:function(e,t){for(var n=this.length;n--;){var r=this[n];if(r.localName==t&&r.namespaceURI==e)return r}return null}},DOMImplementation.prototype={hasFeature:function(e,t){return!0},createDocument:function(e,t,n){var r=new Document;return r.implementation=this,r.childNodes=new NodeList,r.doctype=n||null,n&&r.appendChild(n),t&&(t=r.createElementNS(e,t),r.appendChild(t)),r},createDocumentType:function(e,t,n){var r=new DocumentType;return r.name=e,r.nodeName=e,r.publicId=t||"",r.systemId=n||"",r}},Node.prototype={firstChild:null,lastChild:null,previousSibling:null,nextSibling:null,attributes:null,parentNode:null,childNodes:null,ownerDocument:null,nodeValue:null,namespaceURI:null,prefix:null,localName:null,insertBefore:function(e,t){return _insertBefore(this,e,t)},replaceChild:function(e,t){_insertBefore(this,e,t,assertPreReplacementValidityInDocument),t&&this.removeChild(t)},removeChild:function(e){return _removeChild(this,e)},appendChild:function(e){return this.insertBefore(e,null)},hasChildNodes:function(){return null!=this.firstChild},cloneNode:function(e){return cloneNode(this.ownerDocument||this,this,e)},normalize:function(){for(var e=this.firstChild;e;){var t=e.nextSibling;t&&t.nodeType==TEXT_NODE&&e.nodeType==TEXT_NODE?(this.removeChild(t),e.appendData(t.data)):(e.normalize(),e=t)}},isSupported:function(e,t){return this.ownerDocument.implementation.hasFeature(e,t)},hasAttributes:function(){return 0<this.attributes.length},lookupPrefix:function(e){for(var t=this;t;){var n=t._nsMap;if(n)for(var r in n)if(Object.prototype.hasOwnProperty.call(n,r)&&n[r]===e)return r;t=t.nodeType==ATTRIBUTE_NODE?t.ownerDocument:t.parentNode}return null},lookupNamespaceURI:function(e){for(var t=this;t;){var n=t._nsMap;if(n&&Object.prototype.hasOwnProperty.call(n,e))return n[e];t=t.nodeType==ATTRIBUTE_NODE?t.ownerDocument:t.parentNode}return null},isDefaultNamespace:function(e){return null==this.lookupPrefix(e)}},copy(NodeType,Node),copy(NodeType,Node.prototype),Document.prototype={nodeName:"#document",nodeType:DOCUMENT_NODE,doctype:null,documentElement:null,_inc:1,insertBefore:function(e,t){if(e.nodeType!=DOCUMENT_FRAGMENT_NODE)return _insertBefore(this,e,t),null===(e.ownerDocument=this).documentElement&&e.nodeType===ELEMENT_NODE&&(this.documentElement=e),e;for(var n=e.firstChild;n;){var r=n.nextSibling;this.insertBefore(n,t),n=r}return e},removeChild:function(e){return this.documentElement==e&&(this.documentElement=null),_removeChild(this,e)},replaceChild:function(e,t){_insertBefore(this,e,t,assertPreReplacementValidityInDocument),e.ownerDocument=this,t&&this.removeChild(t),isElementNode(e)&&(this.documentElement=e)},importNode:function(e,t){return importNode(this,e,t)},getElementById:function(t){var n=null;return _visitNode(this.documentElement,function(e){if(e.nodeType==ELEMENT_NODE&&e.getAttribute("id")==t)return n=e,!0}),n},getElementsByClassName:function(i){var a=toOrderedSet(i);return new LiveNodeList(this,function(r){var o=[];return 0<a.length&&_visitNode(r.documentElement,function(e){var t,n;e===r||e.nodeType!==ELEMENT_NODE||(t=e.getAttribute("class"))&&((n=i===t)||(t=toOrderedSet(t),n=a.every(arrayIncludes(t))),n&&o.push(e))}),o})},createElement:function(e){var t=new Element;return t.ownerDocument=this,t.nodeName=e,t.tagName=e,t.localName=e,t.childNodes=new NodeList,(t.attributes=new NamedNodeMap)._ownerElement=t},createDocumentFragment:function(){var e=new DocumentFragment;return e.ownerDocument=this,e.childNodes=new NodeList,e},createTextNode:function(e){var t=new Text;return t.ownerDocument=this,t.appendData(e),t},createComment:function(e){var t=new Comment;return t.ownerDocument=this,t.appendData(e),t},createCDATASection:function(e){var t=new CDATASection;return t.ownerDocument=this,t.appendData(e),t},createProcessingInstruction:function(e,t){var n=new ProcessingInstruction;return n.ownerDocument=this,n.tagName=n.target=e,n.nodeValue=n.data=t,n},createAttribute:function(e){var t=new Attr;return t.ownerDocument=this,t.name=e,t.nodeName=e,t.localName=e,t.specified=!0,t},createEntityReference:function(e){var t=new EntityReference;return t.ownerDocument=this,t.nodeName=e,t},createElementNS:function(e,t){var n=new Element,r=t.split(":"),o=n.attributes=new NamedNodeMap;return n.childNodes=new NodeList,n.ownerDocument=this,n.nodeName=t,n.tagName=t,n.namespaceURI=e,2==r.length?(n.prefix=r[0],n.localName=r[1]):n.localName=t,o._ownerElement=n},createAttributeNS:function(e,t){var n=new Attr,r=t.split(":");return n.ownerDocument=this,n.nodeName=t,n.name=t,n.namespaceURI=e,n.specified=!0,2==r.length?(n.prefix=r[0],n.localName=r[1]):n.localName=t,n}},_extends(Document,Node),Element.prototype={nodeType:ELEMENT_NODE,hasAttribute:function(e){return null!=this.getAttributeNode(e)},getAttribute:function(e){e=this.getAttributeNode(e);return e&&e.value||""},getAttributeNode:function(e){return this.attributes.getNamedItem(e)},setAttribute:function(e,t){e=this.ownerDocument.createAttribute(e);e.value=e.nodeValue=""+t,this.setAttributeNode(e)},removeAttribute:function(e){e=this.getAttributeNode(e);e&&this.removeAttributeNode(e)},appendChild:function(e){return e.nodeType===DOCUMENT_FRAGMENT_NODE?this.insertBefore(e,null):_appendSingleChild(this,e)},setAttributeNode:function(e){return this.attributes.setNamedItem(e)},setAttributeNodeNS:function(e){return this.attributes.setNamedItemNS(e)},removeAttributeNode:function(e){return this.attributes.removeNamedItem(e.nodeName)},removeAttributeNS:function(e,t){t=this.getAttributeNodeNS(e,t);t&&this.removeAttributeNode(t)},hasAttributeNS:function(e,t){return null!=this.getAttributeNodeNS(e,t)},getAttributeNS:function(e,t){t=this.getAttributeNodeNS(e,t);return t&&t.value||""},setAttributeNS:function(e,t,n){t=this.ownerDocument.createAttributeNS(e,t);t.value=t.nodeValue=""+n,this.setAttributeNode(t)},getAttributeNodeNS:function(e,t){return this.attributes.getNamedItemNS(e,t)},getElementsByTagName:function(r){return new LiveNodeList(this,function(t){var n=[];return _visitNode(t,function(e){e===t||e.nodeType!=ELEMENT_NODE||"*"!==r&&e.tagName!=r||n.push(e)}),n})},getElementsByTagNameNS:function(r,o){return new LiveNodeList(this,function(t){var n=[];return 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