All: Fix a few MDN links

Replace all MDN links with their canonical versions, fixing one 404 in
the process as well.

Author: mgol

entries/contents.xml

@@ -34,7 +34,7 @@ $( ".container" )
     .filter( "br" )
     .remove();
     </code></pre>
-    <p>This code first retrieves the contents  of <code>&lt;div class="container"&gt;</code> and then filters it for text nodes, which are wrapped in paragraph tags. This is accomplished by testing the <a href="https://developer.mozilla.org/docs/en/DOM/Node.nodeType"><code>.nodeType</code> property</a> of the element. This DOM property holds a numeric code indicating the node's type; text nodes use the code 3. The contents are again filtered, this time for <code>&lt;br /&gt;</code> elements, and these elements are removed.</p>
+    <p>This code first retrieves the contents  of <code>&lt;div class="container"&gt;</code> and then filters it for text nodes, which are wrapped in paragraph tags. This is accomplished by testing the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType"><code>.nodeType</code> property</a> of the element. This DOM property holds a numeric code indicating the node's type; text nodes use the code 3. The contents are again filtered, this time for <code>&lt;br /&gt;</code> elements, and these elements are removed.</p>
   </longdesc>
   <example>
     <desc>Find all the text nodes inside a paragraph and wrap them with a bold tag.</desc>

entries/delay.xml

@@ -21,7 +21,7 @@ $( "#foo" ).slideUp( 300 ).delay( 800 ).fadeIn( 400 );
     <p>When this statement is executed, the element slides up for 300 milliseconds and then pauses for 800 milliseconds before fading in for 400 milliseconds.</p>
     <div class="warning">
       <p>
-        <strong>The <code>.delay()</code> method is best for delaying between queued jQuery effects. Because it is limited&#x2014;it doesn't, for example, offer a way to cancel the delay&#x2014;<code>.delay()</code> is not a replacement for JavaScript's native <a href="https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers.setTimeout">setTimeout</a> function, which may be more appropriate for certain use cases.</strong>
+        <strong>The <code>.delay()</code> method is best for delaying between queued jQuery effects. Because it is limited&#x2014;it doesn't, for example, offer a way to cancel the delay&#x2014;<code>.delay()</code> is not a replacement for JavaScript's native <a href="https://developer.mozilla.org/en-US/docs/Web/API/setTimeout">setTimeout</a> function, which may be more appropriate for certain use cases.</strong>
       </p>
     </div>
   </longdesc>

entries/event.which.xml

@@ -6,7 +6,7 @@
   </signature>
   <desc>For key or mouse events, this property indicates the specific key or button that was pressed.</desc>
   <longdesc>
-    <p>The <code>event.which</code> property normalizes <code>event.keyCode</code> and <code>event.charCode</code>. It is recommended to watch <code>event.which</code> for keyboard key input. For more detail, read about <a href="https://developer.mozilla.org/en/DOM/event.charCode#Notes">event.charCode on the MDN</a>. </p>
+    <p>The <code>event.which</code> property normalizes <code>event.keyCode</code> and <code>event.charCode</code>. It is recommended to watch <code>event.which</code> for keyboard key input. For more detail, read about <a href="https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/charCode#notes">event.charCode on the MDN</a>. </p>
     <p><code>event.which</code> also normalizes button presses (<code>mousedown</code> and <code>mouseup</code>events), reporting <code>1</code> for left button, <code>2</code> for middle, and <code>3</code> for right. Use <code>event.which</code> instead of <code>event.button</code>.  </p>
   </longdesc>
   <example>

pages/Types.html

@@ -648,7 +648,7 @@ <h2 id="XMLHttpRequest"> XMLHttpRequest </h2>
 <p>Although the XHR object is a standard, there are variations in its behavior on different browsers. Refer to the WHATWG site and Mozilla Developer Network for more information:
 </p>
 <ul><li> <a href="https://xhr.spec.whatwg.org/" class="external text" title="https://xhr.spec.whatwg.org/">WHATWG living standard</a>
-</li><li> <a href="https://developer.mozilla.org/docs/DOM/XMLHttpRequest" class="external text" title="https://developer.mozilla.org/docs/DOM/XMLHttpRequest">Mozilla Developer Network</a>
+</li><li> <a href="https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest" class="external text" title="https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest">Mozilla Developer Network</a>
 </li></ul>
 <h2 id="jqXHR"> jqXHR </h2>
 <p>As of jQuery 1.5, the <a href="/jQuery.ajax/">$.ajax()</a> method returns the jqXHR object, which is a superset of the XMLHTTPRequest object. For more information, see the <a href="/jQuery.ajax/#jqXHR">jqXHR section of the $.ajax entry</a>