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index.html
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<!DOCTYPE html><html lang="en" dir="ltr"><head><meta name="generator" content="ReSpec 18.0.2"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><style>/* --- EXAMPLES --- */
div.example-title {
min-width: 7.5em;
color: #b9ab2d;
}
div.example-title span {
text-transform: uppercase;
}
aside.example, div.example, div.illegal-example {
padding: 0.5em;
margin: 1em 0;
position: relative;
clear: both;
}
div.illegal-example { color: red }
div.illegal-example p { color: black }
aside.example, div.example {
padding: .5em;
border-left-width: .5em;
border-left-style: solid;
border-color: #e0cb52;
background: #fcfaee;
}
aside.example div.example {
border-left-width: .1em;
border-color: #999;
background: #fff;
}
aside.example div.example div.example-title {
color: #999;
}
</style><style>/* --- ISSUES/NOTES --- */
div.issue-title, div.note-title , div.ednote-title, div.warning-title {
padding-right: 1em;
min-width: 7.5em;
color: #b9ab2d;
}
div.issue-title { color: #e05252; }
div.note-title, div.ednote-title { color: #2b2; }
div.warning-title { color: #f22; }
div.issue-title span, div.note-title span, div.ednote-title span, div.warning-title span {
text-transform: uppercase;
}
div.note, div.issue, div.ednote, div.warning {
margin-top: 1em;
margin-bottom: 1em;
}
.note > p:first-child, .ednote > p:first-child, .issue > p:first-child, .warning > p:first-child { margin-top: 0 }
.issue, .note, .ednote, .warning {
padding: .5em;
border-left-width: .5em;
border-left-style: solid;
}
div.issue, div.note , div.ednote, div.warning {
padding: 1em 1.2em 0.5em;
margin: 1em 0;
position: relative;
clear: both;
}
span.note, span.ednote, span.issue, span.warning { padding: .1em .5em .15em; }
.issue {
border-color: #e05252;
background: #fbe9e9;
}
.note, .ednote {
border-color: #52e052;
background: #e9fbe9;
}
.warning {
border-color: #f11;
border-width: .2em;
border-style: solid;
background: #fbe9e9;
}
.warning-title:before{
content: "⚠"; /*U+26A0 WARNING SIGN*/
font-size: 3em;
float: left;
height: 100%;
padding-right: .3em;
vertical-align: top;
margin-top: -0.5em;
}
li.task-list-item {
list-style: none;
}
input.task-list-item-checkbox {
margin: 0 0.35em 0.25em -1.6em;
vertical-align: middle;
}
</style><style>/* --- WEB IDL --- */
pre.idl {
padding: 1em;
}
.respec-idl-separator {
padding: 0 0 0.4cm 0;
}
.respec-idl-separator:last-child {
padding: 0;
}
@media print {
pre.idl {
white-space: pre-wrap;
}
}
pre.idl::before {
content: "WebIDL";
display: block;
width: 150px;
background: #90b8de;
color: #fff;
font-family: sans-serif;
font-weight: bold;
margin: -1em 0 1em -1em;
height: 28px;
line-height: 28px;
}
.idlType {
color: #ff4500;
font-weight: bold;
text-decoration: none;
}
/*.idlModule*/
/*.idlModuleID*/
/*.idlInterface*/
.idlInterfaceID,
.idlDictionaryID,
.idlCallbackID,
.idlEnumID {
font-weight: bold;
color: #005a9c;
}
a.idlEnumItem {
color: #000;
border-bottom: 1px dotted #ccc;
text-decoration: none;
}
.idlSuperclass {
font-style: italic;
color: #005a9c;
}
/*.idlAttribute*/
.idlAttrType,
.idlFieldType,
.idlMemberType {
color: #005a9c;
}
.idlAttrName,
.idlFieldName,
.idlMemberName {
color: #ff4500;
}
.idlAttrName a,
.idlFieldName a,
.idlMemberName a {
color: #ff4500;
border-bottom: 1px dotted #ff4500;
text-decoration: none;
}
/*.idlMethod*/
.idlMethType,
.idlCallbackType {
color: #005a9c;
}
.idlMethName {
color: #ff4500;
}
.idlMethName a {
color: #ff4500;
border-bottom: 1px dotted #ff4500;
text-decoration: none;
}
/*.idlCtor*/
.idlCtorName {
color: #ff4500;
}
.idlCtorName a {
color: #ff4500;
border-bottom: 1px dotted #ff4500;
text-decoration: none;
}
/*.idlParam*/
.idlParamType {
color: #005a9c;
}
.idlParamName,
.idlDefaultValue {
font-style: italic;
}
.extAttr {
color: #666;
}
/*.idlSectionComment*/
.idlSectionComment {
color: gray;
}
/*.idlIterable*/
.idlIterableKeyType,
.idlIterableValueType {
color: #005a9c;
}
/*.idlMaplike*/
.idlMaplikeKeyType,
.idlMaplikeValueType {
color: #005a9c;
}
/*.idlConst*/
.idlConstType {
color: #005a9c;
}
.idlConstName {
color: #ff4500;
}
.idlConstName a {
color: #ff4500;
border-bottom: 1px dotted #ff4500;
text-decoration: none;
}
/*.idlException*/
.idlExceptionID {
font-weight: bold;
color: #c00;
}
.idlTypedefID,
.idlTypedefType {
color: #005a9c;
}
.idlRaises,
.idlRaises a.idlType,
.idlRaises a.idlType code,
.excName a,
.excName a code {
color: #c00;
font-weight: normal;
}
.excName a {
font-family: monospace;
}
.idlRaises a.idlType,
.excName a.idlType {
border-bottom: 1px dotted #c00;
}
.excGetSetTrue,
.excGetSetFalse,
.prmNullTrue,
.prmNullFalse,
.prmOptTrue,
.prmOptFalse {
width: 45px;
text-align: center;
}
.excGetSetTrue,
.prmNullTrue,
.prmOptTrue {
color: #0c0;
}
.excGetSetFalse,
.prmNullFalse,
.prmOptFalse {
color: #c00;
}
.idlImplements a {
font-weight: bold;
}
dl.attributes,
dl.methods,
dl.constants,
dl.constructors,
dl.fields,
dl.dictionary-members {
margin-left: 2em;
}
.attributes dt,
.methods dt,
.constants dt,
.constructors dt,
.fields dt,
.dictionary-members dt {
font-weight: normal;
}
.attributes dt code,
.methods dt code,
.constants dt code,
.constructors dt code,
.fields dt code,
.dictionary-members dt code {
font-weight: bold;
color: #000;
font-family: monospace;
}
.attributes dt code,
.fields dt code,
.dictionary-members dt code {
background: #ffffd2;
}
.attributes dt .idlAttrType code,
.fields dt .idlFieldType code,
.dictionary-members dt .idlMemberType code {
color: #005a9c;
background: transparent;
font-family: inherit;
font-weight: normal;
font-style: italic;
}
.methods dt code {
background: #d9e6f8;
}
.constants dt code {
background: #ddffd2;
}
.constructors dt code {
background: #cfc;
}
.attributes dd,
.methods dd,
.constants dd,
.constructors dd,
.fields dd,
.dictionary-members dd {
margin-bottom: 1em;
}
table.parameters,
table.exceptions {
border-spacing: 0;
border-collapse: collapse;
margin: 0.5em 0;
width: 100%;
}
table.parameters {
border-bottom: 1px solid #90b8de;
}
table.exceptions {
border-bottom: 1px solid #deb890;
}
.parameters th,
.exceptions th {
color: inherit;
padding: 3px 5px;
text-align: left;
font-weight: normal;
}
.parameters th {
color: #fff;
background: #005a9c;
}
.exceptions th {
background: #deb890;
}
.parameters td,
.exceptions td {
padding: 3px 10px;
border-top: 1px solid #ddd;
vertical-align: top;
}
.parameters tr:first-child td,
.exceptions tr:first-child td {
border-top: none;
}
.parameters td.prmName,
.exceptions td.excName,
.exceptions td.excCodeName {
width: 100px;
}
.parameters td.prmType {
width: 120px;
}
table.exceptions table {
border-spacing: 0;
border-collapse: collapse;
width: 100%;
}
.respec-button-copy-paste:focus {
text-decoration: none;
border-color: #51a7e8;
outline: none;
box-shadow: 0 0 5px rgba(81, 167, 232, 0.5);
}
.respec-button-copy-paste:focus:hover,
.respec-button-copy-paste.selected:focus {
border-color: #51a7e8;
}
.respec-button-copy-paste:hover,
.respec-button-copy-paste:active,
.respec-button-copy-paste.zeroclipboard-is-hover,
.respec-button-copy-paste.zeroclipboard-is-active {
text-decoration: none;
background-color: #ddd;
background-image: linear-gradient(#eee, #ddd);
border-color: #ccc;
}
.respec-button-copy-paste:active,
.respec-button-copy-paste.selected,
.respec-button-copy-paste.zeroclipboard-is-active {
background-color: #dcdcdc;
background-image: none;
border-color: #b5b5b5;
box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15)
}
.respec-button-copy-paste.selected:hover {
background-color: #cfcfcf;
}
.respec-button-copy-paste:disabled,
.respec-button-copy-paste:disabled:hover,
.respec-button-copy-paste.disabled,
.respec-button-copy-paste.disabled:hover {
color: rgba(102, 102, 102, 0.5);
cursor: default;
background-color: rgba(229, 229, 229, 0.5);
background-image: none;
border-color: rgba(197, 197, 197, 0.5);
box-shadow: none;
}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Encrypted Media Extensions</title>
<!-- script to register bugs -->
<!-- Disabled unless/until it supports GitHub issues.
<script src="https://w3c.github.io/webcomponents/assets/scripts/bug-assist.js"></script>
<meta name="bug.product" content="HTML WG"/>
<meta name="bug.component" content="Encrypted Media Extensions"/>
-->
<link rel="stylesheet" href="eme.css">
<style id="respec-mainstyle">/*****************************************************************
* ReSpec 3 CSS
* Robin Berjon - http://berjon.com/
*****************************************************************/
/* Override code highlighter background */
.hljs {
background: transparent !important;
}
/* --- INLINES --- */
h1 abbr,
h2 abbr,
h3 abbr,
h4 abbr,
h5 abbr,
h6 abbr,
a abbr {
border: none;
}
dfn {
font-weight: bold;
}
a.internalDFN {
color: inherit;
border-bottom: 1px solid #99c;
text-decoration: none;
}
a.externalDFN {
color: inherit;
border-bottom: 1px dotted #ccc;
text-decoration: none;
}
a.bibref {
text-decoration: none;
}
cite .bibref {
font-style: normal;
}
code {
color: #c83500;
}
th code {
color: inherit;
}
/* --- TOC --- */
.toc a,
.tof a {
text-decoration: none;
}
a .secno,
a .figno {
color: #000;
}
ul.tof,
ol.tof {
list-style: none outside none;
}
.caption {
margin-top: 0.5em;
font-style: italic;
}
/* --- TABLE --- */
table.simple {
border-spacing: 0;
border-collapse: collapse;
border-bottom: 3px solid #005a9c;
}
.simple th {
background: #005a9c;
color: #fff;
padding: 3px 5px;
text-align: left;
}
.simple th[scope="row"] {
background: inherit;
color: inherit;
border-top: 1px solid #ddd;
}
.simple td {
padding: 3px 10px;
border-top: 1px solid #ddd;
}
.simple tr:nth-child(even) {
background: #f0f6ff;
}
/* --- DL --- */
.section dd > p:first-child {
margin-top: 0;
}
.section dd > p:last-child {
margin-bottom: 0;
}
.section dd {
margin-bottom: 1em;
}
.section dl.attrs dd,
.section dl.eldef dd {
margin-bottom: 0;
}
#issue-summary > ul,
.respec-dfn-list {
column-count: 2;
}
#issue-summary li,
.respec-dfn-list li {
list-style: none;
}
details.respec-tests-details {
margin-left: 1em;
display: inline-block;
vertical-align: top;
}
details.respec-tests-details > * {
padding-right: 2em;
}
details.respec-tests-details[open] {
z-index: 999999;
position: absolute;
border: thin solid #cad3e2;
border-radius: .3em;
background-color: white;
padding-bottom: .5em;
}
details.respec-tests-details[open] > summary {
border-bottom: thin solid #cad3e2;
padding-left: 1em;
margin-bottom: 1em;
line-height: 2em;
}
details.respec-tests-details > ul {
width: 100%;
margin-top: -0.3em;
}
details.respec-tests-details > li {
padding-left: 1em;
}
@media print {
.removeOnSave {
display: none;
}
}
</style><style>/*
github.com style (c) Vasily Polovnyov <[email protected]>
*/
.hljs {
display: block;
overflow-x: auto;
padding: 0.5em;
color: #333;
background: #f8f8f8;
}
.hljs-comment,
.hljs-quote {
color: #998;
font-style: italic;
}
.hljs-keyword,
.hljs-selector-tag,
.hljs-subst {
color: #333;
font-weight: bold;
}
.hljs-number,
.hljs-literal,
.hljs-variable,
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