Added sanitizer extension

public/res/extensions/partialRendering.js

@@ -20,6 +20,7 @@ define([
 	var modifiedSections = [];
 	var insertBeforeSection;
 	var fileChanged = false;
+
 	function updateSectionList() {
 		var newSectionList = [];
 		var newLinkDefinition = '\n';
@@ -111,6 +112,7 @@ define([
 
 	var footnoteContainerElt;
 	var previewContentsElt;
+
 	function refreshSections() {
 
 		// Remove outdated sections
@@ -121,6 +123,7 @@ define([
 
 		var wmdPreviewElt = document.getElementById("wmd-preview");
 		var childNode = wmdPreviewElt.firstChild;
+
 		function createSectionElt(section) {
 			var sectionElt = crel('div', {
 				id: 'wmd-preview-section-' + section.id,
@@ -166,7 +169,8 @@ define([
 				elt.textContent = index + 1;
 				var id = elt.id.substring(6);
 				usedFootnoteIds.push(id);
-                footnoteElts.appendChild(footnoteMap[id].cloneNode(true));
+				var footnoteElt = footnoteMap[id];
+				footnoteElt && footnoteElts.appendChild(footnoteElt.cloneNode(true));
 			});
 			if(usedFootnoteIds.length > 0) {
 				// Append the whole footnotes at the end of the document

public/res/utils.js

@@ -10,6 +10,47 @@ define([
 
 	var utils = {};
 
+	utils.msie = (function() {
+		/**
+		 * IE 11 changed the format of the UserAgent string.
+		 * See http://msdn.microsoft.com/en-us/library/ms537503.aspx
+		 */
+		var msie = parseInt((/msie (\d+)/.exec(navigator.userAgent.toLowerCase()) || [])[1], 10);
+		if (isNaN(msie)) {
+			msie = parseInt((/trident\/.*; rv:(\d+)/.exec(navigator.userAgent.toLowerCase()) || [])[1], 10);
+		}
+		return msie;
+	})();
+
+	utils.urlResolve = (function() {
+		var urlParsingNode = document.createElement("a");
+		return function urlResolve(url) {
+			var href = url;
+
+			if (utils.msie) {
+				// Normalize before parse.  Refer Implementation Notes on why this is
+				// done in two steps on IE.
+				urlParsingNode.setAttribute("href", href);
+				href = urlParsingNode.href;
+			}
+
+			urlParsingNode.setAttribute('href', href);
+
+			// urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+			return {
+				href: urlParsingNode.href,
+				protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+				host: urlParsingNode.host,
+				search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+				hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+				hostname: urlParsingNode.hostname,
+				port: urlParsingNode.port,
+				pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
+					urlParsingNode.pathname : '/' + urlParsingNode.pathname
+			};
+		};
+	})();
+
 	// Faster than setTimeout (see http://dbaron.org/log/20100309-faster-timeouts)
 	utils.defer = (function() {
 		var timeouts = [];