From e2b17f1f934ac2e2af81543187cd78b9fb6f9914 Mon Sep 17 00:00:00 2001
From: Simon Pieters <zcorpan@gmail.com>
Date: Mon, 21 Aug 2017 15:19:30 +0200
Subject: [PATCH] Remove <applet>

This removes support for the applet element from:

* document.all[name]
* document[name]
* window[name]

Furthermore:

* document.applets now returns an empty array
* Removed handling for applet elements in <iframe sandbox>
* Removed rendering rules for applet elements
* Removed the element itself and HTMLAppletElement
* Applet elements now use HTMLUnknownElement

The HTML parser is intentionally not changed.

Tests: https://github.com/w3c/web-platform-tests/pull/6684.

Fixes #454.
---
 source | 267 +++++++++++++++------------------------------------------
 1 file changed, 67 insertions(+), 200 deletions(-)

diff --git a/source b/source
index 349f1d9eef4..d475e5d3227 100644
--- a/source
+++ b/source
@@ -7184,7 +7184,6 @@ interface <dfn>HTMLAllCollection</dfn> {
   <!-- https://software.hixie.ch/utilities/js/live-dom-viewer/?saved=2837 -->
   <p>The following elements are <dfn>"all"-named elements</dfn>:
    <code>a</code>, <!-- in some browsers -->
-   <code>applet</code>,
    <code>button</code>, <!-- in some browsers -->
    <code>embed</code>,
    <code>form</code>,
@@ -9575,14 +9574,14 @@ partial interface <dfn id="document" data-lt="">Document</dfn> {
   data-x="">name</code> attributes when the same element contributes both:</p>
 
   <ul>
-   <li><p>the value of the <code data-x="">name</code> content attribute for all <code>applet</code>,
+   <li><p>the value of the <code data-x="">name</code> content attribute for all
    <span>exposed</span> <code>embed</code>, <code>form</code>, <code>iframe</code>,
    <code>img</code>, and <span>exposed</span> <code>object</code> elements that have a non-empty
    <code data-x="">name</code> content attribute and are <span>in a document tree</span> with
    <var>document</var> as their <span>root</span>;<p></li>
 
    <li><p>the value of the <code data-x="attr-id">id</code> content attribute for all
-   <code>applet</code> and <span>exposed</span> <code>object</code> elements that have a non-empty
+   <span>exposed</span> <code>object</code> elements that have a non-empty
    <code data-x="attr-id">id</code> content attribute and are <span>in a document tree</span> with
    <var>document</var> as their <span>root</span>; and</p></li>
 
@@ -9645,11 +9644,11 @@ partial interface <dfn id="document" data-lt="">Document</dfn> {
 
   <ul>
 
-   <li><code>applet</code>, <span>exposed</span> <code>embed</code>, <code>form</code>,
-   <code>iframe</code>, <code>img</code>, or <span>exposed</span> <code>object</code> elements that
-   have a <code data-x="">name</code> content attribute whose value is <var>name</var>, or</li>
+   <li><span>Exposed</span> <code>embed</code>, <code>form</code>, <code>iframe</code>,
+   <code>img</code>, or <span>exposed</span> <code>object</code> elements that have a <code
+   data-x="">name</code> content attribute whose value is <var>name</var>, or</li>
 
-   <li><code>applet</code> or <span>exposed</span> <code>object</code> elements that have an <code
+   <li><span>Exposed</span> <code>object</code> elements that have an <code
    data-x="attr-id">id</code> content attribute whose value is <var>name</var>, or</li>
 
    <li><code>img</code> elements that have an <code data-x="attr-id">id</code> content attribute
@@ -9956,9 +9955,9 @@ interface <dfn>HTMLUnknownElement</dfn> : <span>HTMLElement</span> { };</pre>
   <span>HTML namespace</span> is determined as follows:</p>
 
   <ol>
-   <li><p>If <var>name</var> is <code>bgsound</code>, <code>blink</code>, <code>isindex</code>,
-   <code>keygen</code>, <code>multicol</code>, <code>nextid</code>, or <code>spacer</code>, then
-   return <code>HTMLUnknownElement</code>.</p></li>
+   <li><p>If <var>name</var> is <code>applet</code>, <code>bgsound</code>, <code>blink</code>,
+   <code>isindex</code>, <code>keygen</code>, <code>multicol</code>, <code>nextid</code>, or
+   <code>spacer</code>, then return <code>HTMLUnknownElement</code>.</p></li>
 
    <li><p>If <var>name</var> is <code>acronym</code>, <code>basefont</code>, <code>big</code>,
    <code>center</code>, <code>nobr</code>, <code>noembed</code>, <code>noframes</code>,
@@ -31010,24 +31009,6 @@ interface <dfn>HTMLObjectElement</dfn> : <span>HTMLElement</span> {
 
   </div>
 
-  <div class="example">
-
-   <p>In the following example, a Java applet is embedded in a page using the <code>object</code>
-   element. (Generally speaking, it is better to avoid using applets like these and instead use
-   native JavaScript and HTML to provide the functionality, since that way the application will work
-   on all Web browsers without requiring a third-party plugin. Many devices, especially embedded
-   devices, do not support third-party technologies like Java.)</p>
-
-   <pre>&lt;figure>
- &lt;object type="application/x-java-applet">
-  &lt;param name="code" value="MyJavaClass">
-  &lt;p>You do not have Java available, or it is disabled.&lt;/p>
- &lt;/object>
- &lt;figcaption>My Java Clock&lt;/figcaption>
-&lt;/figure></pre>
-
-  </div>
-
   <div class="example">
 
    <p>In this example, an HTML page is embedded in another using the <code>object</code>
@@ -65972,9 +65953,6 @@ console.log(plasticButton2.getAttribute("is")); // will output "plastic-button"<
   built-in element</span> would have come to depend on their base element having no interesting
   user-agent-supplied behavior.</p>
 
-  <p>Additionally, <code>applet</code> elements cannot be extended, as they are in the process of
-  being removed from the Web platform.</p>
-
   <h5 id="custom-elements-autonomous-drawbacks">Drawbacks of autonomous custom elements</h5>
 
   <!-- NON-NORMATIVE SECTION -->
@@ -78563,12 +78541,11 @@ callback <dfn>FrameRequestCallback</dfn> = void (<span>DOMHighResTimeStamp</span
    <li><p><var>window</var>'s <span>document-tree child browsing context name property
    set</span>;</p></li>
 
-   <li><p>the value of the <code data-x="">name</code> content attribute for all
-   <code>applet</code>, <code>embed</code>, <code>form</code>, <code>frameset</code>,
-   <code>img</code>, and <code>object</code> elements that have a non-empty <code
-   data-x="">name</code> content attribute and are <span>in a document tree</span> with
-   <var>window</var>'s <span>browsing context</span>'s <span>active document</span> as their
-   <span>root</span>; and</p></li>
+   <li><p>the value of the <code data-x="">name</code> content attribute for all <code>embed</code>,
+   <code>form</code>, <code>frameset</code>, <code>img</code>, and <code>object</code> elements that
+   have a non-empty <code data-x="">name</code> content attribute and are <span>in a document
+   tree</span> with <var>window</var>'s <span>browsing context</span>'s <span>active document</span>
+   as their <span>root</span>; and</p></li>
 
    <li><p>the value of the <code data-x="attr-id">id</code> content attribute for all <span>HTML
    elements</span> that have a non-empty <code data-x="attr-id">id</code> content attribute and are
@@ -78629,11 +78606,11 @@ callback <dfn>FrameRequestCallback</dfn> = void (<span>DOMHighResTimeStamp</span
    <li><p><span data-x="document-tree child browsing context">document-tree child browsing
    contexts</span> of the <span>active document</span> whose name is <var>name</var>;</p></li>
 
-   <li><p><code>a</code>, <code>applet</code>, <code>area</code>, <code>embed</code>,
-   <code>form</code>, <code>frameset</code>, <code>img</code>, or <code>object</code> elements that
-   have a <code data-x="">name</code> content attribute whose value is <var>name</var> and are
-   <span>in a document tree</span> with the <span>active document</span> as their
-   <span>root</span>; and</p></li>
+   <li><p><code>a</code>, <code>area</code>, <code>embed</code>, <code>form</code>,
+   <code>frameset</code>, <code>img</code>, or <code>object</code> elements that have a <code
+   data-x="">name</code> content attribute whose value is <var>name</var> and are <span>in a
+   document tree</span> with the <span>active document</span> as their <span>root</span>;
+   and</p></li>
 
    <li><p><span>HTML elements</span> that have an <code data-x="attr-id">id</code> content attribute
    whose value is <var>name</var> and are <span>in a document tree</span> with the <span>active
@@ -79810,8 +79787,7 @@ callback <dfn>FrameRequestCallback</dfn> = void (<span>DOMHighResTimeStamp</span
 
     <p>This flag prevents content from instantiating <span data-x="plugin">plugins</span>, whether
     using <a href="#sandboxPluginEmbed">the <code>embed</code> element</a>, <a
-    href="#sandboxPluginObject">the <code>object</code> element</a>, <a
-    href="#sandboxPluginApplet">the <code>applet</code> element</a>, or through <a
+    href="#sandboxPluginObject">the <code>object</code> element</a>, or through <a
     href="#sandboxPluginNavigate">navigation</a> of a <span>nested browsing context</span>, unless
     those <span data-x="plugin">plugins</span> can be <span
     data-x="concept-plugin-secure">secured</span>.</p>
@@ -111496,9 +111472,8 @@ legend {
   <h3>Replaced elements</h3>
 
   <p class="note">The following elements can be <span data-x="replaced element">replaced
-  elements</span>: <code>applet</code>, <code>audio</code>, <code>canvas</code>, <code>embed</code>,
-  <code>iframe</code>, <code>img</code>, <code>input</code>, <code>object</code>, and
-  <code>video</code>.</p>
+  elements</span>: <code>audio</code>, <code>canvas</code>, <code>embed</code>, <code>iframe</code>,
+  <code>img</code>, <code>input</code>, <code>object</code>, and <code>video</code>.</p>
 
 
   <h4 id="embedded-content-rendering-rules">Embedded content</h4>
@@ -111517,10 +111492,6 @@ legend {
   <code>object</code> elements are expected to be treated as ordinary elements in the rendering
   model.</p>
 
-  <p>An <code>applet</code> element that <span>represents</span> a <span>plugin</span> is expected
-  to be treated as a <span>replaced element</span>. Other <code>applet</code> elements are expected
-  to be treated as ordinary elements in the rendering model.</p>
-
   <p>The <code>audio</code> element, when it is <span data-x="expose a user interface to the
   user">exposing a user interface</span>, is expected to be treated as a
   <span>replaced element</span> about one line high, as wide as is necessary to expose the user
@@ -111683,66 +111654,62 @@ img[align=right i] { margin-left: 3px; }</pre>
 
 iframe[frameborder=0], iframe[frameborder=no i] { border: none; }
 
-applet[align=left i], embed[align=left i], iframe[align=left i],
-img[align=left i], input[type=image i][align=left i], object[align=left i] {
+embed[align=left i], iframe[align=left i], img[align=left i],
+input[type=image i][align=left i], object[align=left i] {
   float: left;
 }
 
-applet[align=right i], embed[align=right i], iframe[align=right i],
-img[align=right i], input[type=image i][align=right i], object[align=right i] {
+embed[align=right i], iframe[align=right i], img[align=right i],
+input[type=image i][align=right i], object[align=right i] {
   float: right;
 }
 
-applet[align=top i], embed[align=top i], iframe[align=top i],
-img[align=top i], input[type=image i][align=top i], object[align=top i] {
+embed[align=top i], iframe[align=top i], img[align=top i],
+input[type=image i][align=top i], object[align=top i] {
   vertical-align: top;
 }
 
-applet[align=baseline i], embed[align=baseline i], iframe[align=baseline i],
-img[align=baseline i], input[type=image i][align=baseline i], object[align=baseline i] {
+embed[align=baseline i], iframe[align=baseline i], img[align=baseline i],
+input[type=image i][align=baseline i], object[align=baseline i] {
   vertical-align: baseline;
 }
 
-applet[align=texttop i], embed[align=texttop i], iframe[align=texttop i],
-img[align=texttop i], input[type=image i][align=texttop i], object[align=texttop i] {
+embed[align=texttop i], iframe[align=texttop i], img[align=texttop i],
+input[type=image i][align=texttop i], object[align=texttop i] {
   vertical-align: text-top;
 }
 
-applet[align=absmiddle i], embed[align=absmiddle i], iframe[align=absmiddle i],
-img[align=absmiddle i], input[type=image i][align=absmiddle i], object[align=absmiddle i],
-applet[align=abscenter i], embed[align=abscenter i], iframe[align=abscenter i],
-img[align=abscenter i], input[type=image i][align=abscenter i], object[align=abscenter i] {
+embed[align=absmiddle i], iframe[align=absmiddle i], img[align=absmiddle i],
+input[type=image i][align=absmiddle i], object[align=absmiddle i],
+embed[align=abscenter i], iframe[align=abscenter i], img[align=abscenter i],
+input[type=image i][align=abscenter i], object[align=abscenter i] {
   vertical-align: middle;
 }
 
-applet[align=bottom i], embed[align=bottom i], iframe[align=bottom i],
-img[align=bottom i], input[type=image i][align=bottom i],
-object[align=bottom i] {
+embed[align=bottom i], iframe[align=bottom i], img[align=bottom i],
+input[type=image i][align=bottom i], object[align=bottom i] {
   vertical-align: bottom;
 }</pre>
 
-  <p>When an <code>applet</code>, <code>embed</code>, <code>iframe</code>, <code>img</code>, or
-  <code>object</code> element, or an <code>input</code> element whose <code
-  data-x="attr-input-type">type</code> attribute is in the <span
-  data-x="attr-input-type-image">Image Button</span> state, has an <code data-x="">align</code>
-  attribute whose value is an <span>ASCII case-insensitive</span> match for the string "<code
-  data-x="">center</code>" or the string "<code data-x="">middle</code>", the user agent is expected
-  to act as if the element's <span>'vertical-align'</span> property was set to a value that aligns
-  the vertical middle of the element with the parent element's baseline.</p>
-
-  <p>The <code data-x="">hspace</code> attribute of <code>applet</code>, <code>embed</code>,
-  <code>iframe</code>, <code>img</code>, or <code>object</code> elements, and <code>input</code>
-  elements with a <code data-x="attr-input-type">type</code> attribute in the <span
-  data-x="attr-input-type-image">Image Button</span> state, <span data-x="maps to the dimension
-  property">maps to the dimension properties</span> <span>'margin-left'</span> and
-  <span>'margin-right'</span> on the element.</p>
-
-  <p>The <code data-x="">vspace</code> attribute of <code>applet</code>, <code>embed</code>,
-  <code>iframe</code>, <code>img</code>, or <code>object</code> elements, and <code>input</code>
-  elements with a <code data-x="attr-input-type">type</code> attribute in the <span
-  data-x="attr-input-type-image">Image Button</span> state, <span data-x="maps to the dimension
-  property">maps to the dimension properties</span> <span>'margin-top'</span> and
-  <span>'margin-bottom'</span> on the element.</p>
+  <p>When an <code>embed</code>, <code>iframe</code>, <code>img</code>, or <code>object</code>
+  element, or an <code>input</code> element whose <code data-x="attr-input-type">type</code>
+  attribute is in the <span data-x="attr-input-type-image">Image Button</span> state, has an <code
+  data-x="">align</code> attribute whose value is an <span>ASCII case-insensitive</span> match for
+  the string "<code data-x="">center</code>" or the string "<code data-x="">middle</code>", the user
+  agent is expected to act as if the element's <span>'vertical-align'</span> property was set to a
+  value that aligns the vertical middle of the element with the parent element's baseline.</p>
+
+  <p>The <code data-x="">hspace</code> attribute of <code>embed</code>, <code>iframe</code>,
+  <code>img</code>, or <code>object</code> elements, and <code>input</code> elements with a <code
+  data-x="attr-input-type">type</code> attribute in the <span data-x="attr-input-type-image">Image
+  Button</span> state, <span data-x="maps to the dimension property">maps to the dimension
+  properties</span> <span>'margin-left'</span> and <span>'margin-right'</span> on the element.</p>
+
+  <p>The <code data-x="">vspace</code> attribute of <code>embed</code>, <code>iframe</code>,
+  <code>img</code>, or <code>object</code> elements, and <code>input</code> elements with a <code
+  data-x="attr-input-type">type</code> attribute in the <span data-x="attr-input-type-image">Image
+  Button</span> state, <span data-x="maps to the dimension property">maps to the dimension
+  properties</span> <span>'margin-top'</span> and <span>'margin-bottom'</span> on the element.</p>
 
   <p>When an <code>img</code> element, <code>object</code> element, or <code>input</code> element
   with a <code data-x="attr-input-type">type</code> attribute in the <span
@@ -111758,11 +111725,11 @@ object[align=bottom i] {
   'solid'.</p>
 
   <p id="dimRendering">The <code data-x="attr-dim-width">width</code> and <code
-  data-x="attr-dim-height">height</code> attributes on <code>applet</code>, <code>embed</code>,
-  <code>iframe</code>, <code>img</code>, <code>object</code> or <code>video</code> elements, and
-  <code>input</code> elements with a <code data-x="attr-input-type">type</code> attribute in the
-  <span data-x="attr-input-type-image">Image Button</span> state and that either represents an image
-  or that the user expects will eventually represent an image, <span data-x="maps to the dimension
+  data-x="attr-dim-height">height</code> attributes on <code>embed</code>, <code>iframe</code>,
+  <code>img</code>, <code>object</code> or <code>video</code> elements, and <code>input</code>
+  elements with a <code data-x="attr-input-type">type</code> attribute in the <span
+  data-x="attr-input-type-image">Image Button</span> state and that either represents an image or
+  that the user expects will eventually represent an image, <span data-x="maps to the dimension
   property">map to the dimension properties</span> <span>'width'</span> and <span>'height'</span> on
   the element respectively.</p>
 
@@ -112986,7 +112953,7 @@ if (s = prompt('What is your name?')) {
 
   <dl><!-- alphabetical by first element in the group, except CSS goes last -->
 
-   <dt><code>applet</code></dt>
+   <dt><dfn><code>applet</code></dfn></dt>
    <dd><p>Use <code>embed</code> or <code>object</code> instead.</p></dd>
 
    <dt><dfn><code>acronym</code></dfn></dt>
@@ -113214,8 +113181,8 @@ if (s = prompt('What is your name?')) {
    <dt><dfn><code data-x="attr-td-scope">scope</code></dfn> on <code>td</code> elements</dt>
    <dd><p>Use <code>th</code> elements for heading cells.</p>
 
-   <dt><dfn><code data-x="attr-datasrc">datasrc</code></dfn> on <code>a</code>, <code>applet</code>, <code>button</code>, <code>div</code>, <code>frame</code>, <code>iframe</code>, <code>img</code>, <code>input</code>, <code>label</code>, <code>legend</code>, <code>marquee</code>, <code>object</code>, <code>option</code>, <code>select</code>, <code>span</code>, <code>table</code>, and <code>textarea</code> elements</dt>
-   <dt><dfn><code data-x="attr-datafld">datafld</code></dfn> on <code>a</code>, <code>applet</code>, <code>button</code>, <code>div</code>, <code>fieldset</code>, <code>frame</code>, <code>iframe</code>, <code>img</code>, <code>input</code>, <code>label</code>, <code>legend</code>, <code>marquee</code>, <code>object</code>, <code>param</code>, <code>select</code>, <code>span</code>, and <code>textarea</code> elements</dt>
+   <dt><dfn><code data-x="attr-datasrc">datasrc</code></dfn> on <code>a</code>, <code>button</code>, <code>div</code>, <code>frame</code>, <code>iframe</code>, <code>img</code>, <code>input</code>, <code>label</code>, <code>legend</code>, <code>marquee</code>, <code>object</code>, <code>option</code>, <code>select</code>, <code>span</code>, <code>table</code>, and <code>textarea</code> elements</dt>
+   <dt><dfn><code data-x="attr-datafld">datafld</code></dfn> on <code>a</code>, <code>button</code>, <code>div</code>, <code>fieldset</code>, <code>frame</code>, <code>iframe</code>, <code>img</code>, <code>input</code>, <code>label</code>, <code>legend</code>, <code>marquee</code>, <code>object</code>, <code>param</code>, <code>select</code>, <code>span</code>, and <code>textarea</code> elements</dt>
    <dt><dfn><code data-x="attr-dataformatas">dataformatas</code></dfn> on <code>button</code>, <code>div</code>, <code>input</code>, <code>label</code>, <code>legend</code>, <code>marquee</code>, <code>object</code>, <code>option</code>, <code>select</code>, <code>span</code>, and <code>table</code> elements</dt>
    <dd><p>Use script and a mechanism such as <code>XMLHttpRequest</code> to populate the page dynamically. <ref spec=XHR></p></dd>
 
@@ -113319,106 +113286,6 @@ if (s = prompt('What is your name?')) {
 
   <h3>Requirements for implementations</h3>
 
-  <h4 data-dfn-type="element" data-lt="applet">The <dfn><code>applet</code></dfn> element</h4>
-
-  <p class="critical">This feature is in the process of being removed from the Web platform. (This
-  is a long process that takes many years.) Using the <code>applet</code> element at this time is
-  highly discouraged. Follow progress toward complete removal in <a
-  href="https://github.com/whatwg/html/issues/454">issue #454</a>.</p>
-
-  <p>The <code>applet</code> element is a Java-specific variant of the <code>embed</code> element.
-  The <code>applet</code> element is now obsoleted so that all extension frameworks (Java, .NET,
-  Flash, etc) are handled in a consistent manner.</p>
-
-  <p>When the element matches any of the following conditions, it <span>represents</span> its
-  contents:</p>
-
-  <ul class="brief">
-
-   <li>The element is still in the <span>stack of open elements</span> of an <span>HTML
-   parser</span> or <span>XML parser</span>.</li>
-
-   <li>The element is not <span>in a document</span>.</li>
-
-   <li>The element's <span>node document</span> is not <span>fully active</span>.</li>
-
-   <li id="sandboxPluginApplet">The element's <span>node document</span>'s <span>active sandboxing flag
-   set</span> has its <span>sandboxed plugins browsing context flag</span> set.</li>
-
-   <li>The element has an ancestor <span>media element</span>.</li>
-
-   <li>The element has an ancestor <code>object</code> element that is <em>not</em> showing its
-   <span>fallback content</span>.</li>
-
-   <li>No Java Language runtime <span>plugin</span> is available.</li>
-
-   <li>A Java runtime <span>plugin</span> is available but it is disabled.</li>
-
-   <li>The <span>Should element be blocked <i lang="la">a priori</i> by Content Security
-   Policy?</span> algorithm returns "<code data-x="">Blocked</code>" when executed on the
-   element. <ref spec="CSP"></li>
-
-  </ul>
-
-  <!-- we assume here that the Java plugin can't be <span
-  data-x="concept-plugin-secure">secured</span>; if anyone does end up securing one we can always
-  change this -->
-
-  <p>Otherwise, the user agent should instantiate a Java Language runtime <span>plugin</span>, and
-  should pass the names and values of all the attributes on the element, in the order they were
-  added to the element, with the attributes added by the parser being ordered in source order, and
-  then a parameter named "PARAM" whose value is null, and then all the names and values of <span
-  data-x="concept-param-parameter">parameters</span> given by <code>param</code> elements that are
-  children of the <code>applet</code> element, in <span>tree order</span>, to the
-  <span>plugin</span> used. If the <span>plugin</span> supports a scriptable interface, the
-  <code>HTMLAppletElement</code> object representing the element should expose that interface. The
-  <code>applet</code> element <span>represents</span> the <span>plugin</span>.</p>
-
-  <!-- If we ever make this fetch anything manually, remember to delay the load event, and to
-  include ", from the element's <span>browsing context scope origin</span> if it has one" when
-  fetching -->
-
-  <p class="note">The <code>applet</code> element is unaffected by the CSS <span>'display'</span>
-  property. The Java Language runtime is instantiated even if the element is hidden with a
-  'display:none' CSS style.</p>
-
-  <p>The <code>applet</code> element must implement the <code>HTMLAppletElement</code>
-  interface.</p>
-
-  <pre class="idl">// Note: <a href="#customized-built-in-element-restrictions">intentionally</a> not [<span>HTMLConstructor</span>]
-interface <dfn>HTMLAppletElement</dfn> : <span>HTMLElement</span> {
-  attribute DOMString <span data-x="dom-applet-align">align</span>;
-  attribute DOMString <span data-x="dom-applet-alt">alt</span>;
-  attribute DOMString <span data-x="dom-applet-archive">archive</span>;
-  attribute DOMString <span data-x="dom-applet-code">code</span>;
-  attribute USVString <span data-x="dom-applet-codeBase">codeBase</span>;
-  attribute DOMString <span data-x="dom-applet-height">height</span>;
-  attribute unsigned long <span data-x="dom-applet-hspace">hspace</span>;
-  attribute DOMString <span data-x="dom-applet-name">name</span>;
-  attribute USVString _<span data-x="dom-applet-object">object</span>; // the underscore is not part of the identifier <!-- it's a Web IDL escaping mechanism -->
-  attribute unsigned long <span data-x="dom-applet-vspace">vspace</span>;
-  attribute DOMString <span data-x="dom-applet-width">width</span>;
-};</pre>
-
-  <p>The <dfn><code data-x="dom-applet-align">align</code></dfn>, <dfn><code
-  data-x="dom-applet-alt">alt</code></dfn>, <dfn><code
-  data-x="dom-applet-archive">archive</code></dfn>, <dfn><code
-  data-x="dom-applet-code">code</code></dfn>, <dfn><code
-  data-x="dom-applet-height">height</code></dfn>, <dfn><code
-  data-x="dom-applet-hspace">hspace</code></dfn>, <dfn><code
-  data-x="dom-applet-name">name</code></dfn>, <dfn><code
-  data-x="dom-applet-object">object</code></dfn>, <dfn><code
-  data-x="dom-applet-vspace">vspace</code></dfn>, and <dfn><code
-  data-x="dom-applet-width">width</code></dfn> IDL attributes must <span>reflect</span> the
-  respective content attributes of the same name. For the purposes of reflection, the
-  <code>applet</code> element's <code data-x="attr-applet-object" undefined>object</code> content
-  attribute is defined as containing a <span>URL</span>.</p>
-
-  <p>The <dfn><code data-x="dom-applet-codeBase">codeBase</code></dfn> IDL attribute must
-  <span>reflect</span> the <code data-x="attr-applet-codebase" undefined>codebase</code> content
-  attribute, which for the purposes of reflection is defined as containing a <span>URL</span>.</p>
-
-
   <h4 id="the-marquee-element">The <dfn><code>marquee</code></dfn> element</h4>
 
   <p>The <code>marquee</code> element is a presentational element that animates content. CSS
@@ -114493,8 +114360,8 @@ interface <dfn>HTMLFontElement</dfn> : <span>HTMLElement</span> {
   <code>a</code> elements with <code data-x="attr-a-name">name</code> attributes.</p>
 
   <p>The <dfn><code data-x="dom-document-applets">applets</code></dfn> attribute must return an
-  <code>HTMLCollection</code> rooted at the <code>Document</code> node, whose filter matches only
-  <code>applet</code> elements.</p>
+  <code>HTMLCollection</code> rooted at the <code>Document</code> node, whose filter matches
+  nothing. (It exists for historical reasons.)</p>
 
   <p>The <dfn><code data-x="dom-document-clear">clear()</code></dfn>, <dfn><code data-x="dom-document-captureEvents">captureEvents()</code></dfn>, and <dfn><code data-x="dom-document-releaseEvents">releaseEvents()</code></dfn> methods must do nothing.</p>