Software:Comparison of browser engines (HTML support)

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HTML
Comparisons

This article compares HTML support by several browser engines.

Support for the many new additions of the current HTML5 standard is in its own section after the items that preceded it in the history of HTML.

Explanation of the tables

Engine Status Embedded in
WebKit Active Safari browser, plus all browsers hosted on the iOS App Store.
Blink Active Google Chrome and other web browsers based on Chromium, such as Microsoft Edge, Opera, and Brave.
EdgeHTML Active Universal Windows Platform apps; formerly in the Edge browser[1].
Gecko Active Firefox browser and Thunderbird email client, plus forks like SeaMonkey and Waterfox.
KHTML Discontinued Konqueror browser
Presto Discontinued Formerly used as Opera's browser engine, prior to the migration to Chromium and Blink.
Trident Discontinued Internet Explorer and versions of Microsoft Outlook prior to Outlook 2007.

Values

These indicate the level of support for the given item in each engine. By default, the most recent version of the engine is implied. However, a specific version number can be listed; when this indicates full support, it's the initial version of the engine fully supporting the item.

Value Meaning
Yes Fully supported
No Has never been supported
Partial Only some values are supported
Incorrect Not implemented correctly in all cases
Experimental May be incomplete or buggy
Nightly build Currently in development; full support is expected
Depends Only supported for the specified conditions
Dropped No longer supported

Prior to HTML5

Global structure elements

The global structure of the document.

MSHTML Gecko WebKit KHTML Presto
Basic structure
html <3.1[IE 5.0] Yes Yes Yes 1.0
head <3.1[IE 4.0]
body
Metadata
title <3.1[IE 4.0] 1.0 Yes Yes 1.0
meta
Headings
h1 <3.1[IE 4.0] 1.0 Yes Yes 1.0
h2
h3
h4
h5
h6
Grouping elements
div <3.1[IE 4.0] 1.0 Yes Yes 1.0
span

Text elements

Elements that represent text.

MSHTML Gecko WebKit KHTML Presto
Phrase
em <3.1[IE 4.0] 1.0 Yes Yes 1.0
strong
dfn
code
samp
kbd
var
cite
acronym
abbr 3.1
Quotations
blockquote <3.1[IE 4.0] 1.0 Yes Yes 1.0
q 4.0 1.8[note 1]
Subscripts and superscripts
sub <3.1[IE 4.0] 1.0 Yes Yes 1.0
sup
Lines and paragraphs
p <3.1[IE 4.0] 1.0 Yes Yes 1.0
pre
br <3.1[IE 5.0]
Marking document changes
ins <3.1[IE 4.0] 1.0 Yes Yes 1.0
del

List elements

Elements that represent lists of information.

MSHTML Gecko WebKit KHTML Presto
Unordered and ordered lists
ul <3.1[IE 4.0] 1.0 Yes Yes 1.0
ol
li
Definition lists
dl <3.1[IE 4.0] 1.0 Yes Yes 1.0
dt
dd

Table elements

Elements that represent tabular information.

MSHTML Gecko WebKit KHTML Presto
Basic table elements
table <3.1[IE 4.0] 1.0 Yes Yes 1.0
caption
tr
th
td
Row groups
thead <3.1[IE 4.0] 1.0 Yes Yes 1.0
tbody
tfoot
Column groups
colgroup <3.1[IE 4.0] 1.0 Yes Yes 1.0
col

Link elements

Hyperlinks, one of the primary forces driving the success of the World Wide Web.

MSHTML Gecko WebKit KHTML Presto
a <3.1[IE 4.0] 1.0 Yes Yes 1.0
link
base

Multimedia elements

Multimedia features including images, applets, video clips, and other HTML documents.

MSHTML Gecko WebKit KHTML Presto
Images
img <3.1[IE 4.0] 1.0 Yes Yes 1.0
Generic inclusion
object 4.0[note 2] 1.0 Yes Yes 1.0
param <3.1[IE 6.0]
Image maps
map <3.1[IE 4.0] 1.0 Yes Yes 1.0
area 5.0

Frame elements

Elements to present documents in multiple views, which may be independent windows or subwindows. Frame layout is only available in the frameset profiles. All frames are not available in XHTML 1.1 (use generic object elements instead for inline frames).

MSHTML Gecko WebKit KHTML Presto
Frame layout
frameset <3.1[IE 4.0] 1.0 Yes Yes 1.0
frame
noframes
Inline frames
iframe <3.1[IE 4.0] 1.0 Yes Yes 1.0

Form elements

The user interface controls for interacting with the web server.

MSHTML Gecko WebKit KHTML Presto
Basic structure
form <3.1[IE 4.0] 1.0 Yes Yes 1.0
fieldset
legend
Form controls and labels
button <3.1[IE 4.0]

[note 3]

1.0 Yes Yes 1.0
textarea <3.1[IE 4.0]
input
label
List boxes (combo boxes)
select <3.1[IE 4.0] 1.0 Yes Yes 1.0
optgroup
option

Presentational elements

Elements that specify presentational information. Although not all elements are deprecated, their use is discouraged in favor of stylesheets. Deprecated elements are not available in the strict profiles and XHTML 1.1.

MSHTML Gecko WebKit KHTML Presto
Font styles
b <3.1[IE 4.0] 1.0 Yes Yes 1.0
i
big
small
tt
Horizontal rules
hr <3.1[IE 4.0] 1.0 Yes Yes 1.0

Stylesheet elements

The ways to apply stylesheets (CSS) to the document.

MSHTML Gecko WebKit KHTML Presto
<link rel="style" ... /> <3.1[IE 4.0] 1.0 Yes Yes 1.0
style 6.0[note 4]

Script elements

Elements for embedding client-side script (JavaScript). See also DOM Events for a list of attributes used to attach an event handler to an element.

MSHTML Gecko WebKit KHTML Presto
script <3.1[IE 5.0] 1.0 Yes Yes 1.0
noscript

Language elements

Elements related to language information.

MSHTML Gecko WebKit KHTML Presto
bdo <3.1[IE 5.0] 1.0 Yes 1.0

Generic attributes

Attributes that can be used in any elements.

MSHTML Gecko WebKit KHTML Presto
Element identifiers
id <3.1[IE 3.0] 1.0 Yes Yes 1.0
class
Inline styles
style <3.1[IE 3.0] 1.0 Yes Yes 1.0
Advisory information
title <3.1[IE 4.0] 1.0 Yes Yes 1.0
Language information
lang <3.1[IE 4.0] 1.0 Yes Yes 1.0
dir <3.1[IE 5.0]

Non-standard items

In the early years of the Web, the standards which today are used in most web browsers and web pages were mostly non-existent. Different browsers and HTML editors were being offered by competing vendors such as Netscape and Microsoft, who had competing ideas for how web sites should be constructed. These varying features resulted in web developers coding for specific web browsers, using elements which could often be recognized by only one browser.

These tables list browser engine support for non-standard HTML items.

Element Function Supported first by Deprecated in HTML version Alternative solution MSHTML Gecko WebKit KHTML Presto
applet Insert an applet HotJava 4[7] embed, object <3.1[IE 4.0] 1.7 Yes Yes 1.0
basefont Sets font styles Internet Explorer 4 CSS <3.1[IE 3.0] No[8] 85 Yes
center Centers contents Netscape[9] 4 CSS 3.1 Yes Yes
dir Directory list ? 4 ul, ol
font Applies font styles Netscape 4 CSS
isindex[10] Adds a search field ? 4 input type="search" <3.1[IE 5.5] 1.7 312 Partial
listing Displays preformatted text IETF 2 pre, samp, code, CSS 3.1 125 3.3 Yes
menu Menu list ? 4 ul, ol Yes Yes Yes
plaintext Designates that all HTML be ignored, and to display the page as is ? 3.2 The text/plain MIME type
s Strike-through ? 4 del, CSS <3.1[IE 4.0] 1.7 1.0
strike Strike-through ? 4 del, CSS
u Underline ? 4 CSS
xmp Similar to pre and plaintext, but ignores all HTML within and displays as is ? 2 pre, samp, code <3.1[IE 3.0] 125 3.3
Attribute Element Alternative solution MSHTML Gecko WebKit KHTML Presto
align caption, div, fieldset, h1, h2, h3, h4, h5, h6, hr, img, input, legend, p, object, table CSS 3.1 Yes Yes Yes Yes
alink body CSS No
background body CSS Yes
bgcolor body, table, tr, td, th CSS
border img, object CSS Partial[note 5]
clear br CSS No
compact dl, ul, ol CSS No No
color basefont, font CSS 3.1 Partial[note 6][8] Partial[note 6]
height td, th CSS Yes Yes
hspace img, object CSS
language script The type attribute
link body CSS Yes
noshade hr CSS
nowrap td, th CSS
size basefont, font, hr CSS
start ol None
text body CSS
type li, ul, ol CSS
version html DTD No No No No No
vlink body CSS Yes Yes Yes Yes Yes
width hr, pre, td, th CSS
vspace img, object CSS
Tag Function Introduced by Alternative solution MSHTML Gecko WebKit KHTML Presto
bgsound Used to add sound to the background of a website Internet Explorer audio <3.1[IE 3.0] No No No Dropped[11]
blink Used to display a blinking text Netscape Javascript, CSS No Dropped[12] Yes No 1.0
bq Used to display a blockquote WebTV, HTML 3.0 blockquote No No No No Dropped[13]
comment Used to allow the addition of comments to HTML documents Internet Explorer, WebTV <!-- ... --> 3.1 No No No No
ilayer Inline layers Netscape (4 only) iframe No No No Partial No
image Synonym of img ? img 3.1 Yes Yes Yes Yes
layer Used to create multiple layers of text and images which lay on top of each other in a given order Netscape (4 only) CSS, AJAX No No No Partial No
marquee Used to display a scrolling, marquee-like text. Internet Explorer, WebTV JavaScript, CSS3 3.1 1.7 125 3.3 1.0
nobr Prevents any line breaks from occurring within the flow of a text Netscape[14][15] CSS 3.1 Yes Yes Yes Yes
noembed Displays an alternative text for browsers which do not recognize the embed tag Netscape Child elements of object used as fallback
spacer Adds whitespace in a layout Netscape CSS No Dropped[16] No No No
wbr Placed inside a nobr element to add a line break Netscape[14][15] Unicode character zero-width space (U+200B) Dropped[note 7] 1.7 Yes 3.1 No
xml[18] Includes XML data, either inline or from an URL, in an HTML page Internet Explorer AJAX, possibly XML namespaces 3.1 No No No No
Attribute Deprecated for Function Supported first by MSHTML Gecko WebKit KHTML Presto
bgproperties body Determines whether background image scrolls with the background Internet Explorer 3.1 No Yes Yes No
bordercolor body Sets colors for 3-D table borders in the table, td, th, and tr elements Internet Explorer No Yes Yes No
bordercolordark body Sets colors for 3-D table borders in the table, td, th, and tr elements Internet Explorer No No No No
bordercolorlight body Sets colors for 3-D table borders in the table, td, th, and tr elements Internet Explorer
controls img Uses the img element to place video or audio clips Internet Explorer No No No No
dynsrc img Uses the img element to place video or audio clips Internet Explorer No No No No
event script Defines function to call for an object. Internet Explorer Partial ? ? ?
for script Defines the object to bind a scripting event. Internet Explorer Partial ? ? ?
frame table Controls the display of the outer borders of a table in the table tag Internet Explorer Yes ? Yes No
framespacing frameset Sets the amount of space between frames Internet Explorer ? ? No No
leftmargin body Sets the margin between the browser window and the contents of the page Internet Explorer 3.1 ? ? Yes No
loop img Uses the img element to place video or audio clips Internet Explorer No No No No
rightmargin body Sets the margin between the browser window and the contents of the page Internet Explorer 3.1 ? ? No No
start img Uses the img element to place video or audio clips Internet Explorer No No No No
target form Specifies a target window or frame for the output of a form Internet Explorer No[19] ? Yes No
valign caption Sets vertical alignment of table caption Internet Explorer 3.1 ? ? No No

HTML5

MSHTML EdgeHTML Gecko WebKit Presto
section 5.0[t 1] 12 2.0[g 1][g 2] 533[w 1][w 2][w 3][w 4][w 5][w 6] 2.7.70
nav
article
aside
hgroup
header
footer
ping No No Disabled Yes No
time No No 22.0[g 3] No 2.8.146
mark 5.0[t 1] 12 2.0[g 4] Yes[w 7] 2.7.70
ruby,[20] rt, rp 3.1[t 2] 12 38.0[g 5] 533[w 8][w 9] No
dialog[21] No No No[g 6] Only in Chrome[w 10] No
figure 5.0[t 1] 12 2.0[g 7] Yes[w 11] 2.7.70
figcaption
embed <3.1[IE 3.0] 12 1.7 85 1.0
video 12 15.0[g 8] 525 2.5[lower-alpha 1][lower-alpha 2]
audio
source
canvas Partial 1.9.2[g 9] Partial 2.0[p 4]
Inline MathML No No 2.0 No[w 12][w 13] 2.1[lower-alpha 3]
Inline SVG 5.0[t 3] 12 Yes[w 14] 2.9.220[p 6]
details No No 47[g 10] Yes[w 15] No
summary Yes[w 15]
command No[g 11] No
menu 8.0[g 12] No[w 16] 2.8[p 7]
bdi 10.0[g 13] 528[w 17] No
data No No 22.0[g 14] No No
picture No 13 38.0[g 15] No[w 18] No
MSHTML EdgeHTML Gecko WebKit Presto

Element-specific attributes

Attribute Element MSHTML EdgeHTML Gecko WebKit Presto
manifest html 6.0[22] 12 1.9 Yes 2.6[p 8][p 9]
sizes link No 13 8.0 (only mobile)[g 16][g 17] Yes[w 19] No
charset meta 4.0[23] 12 1.9.2 Yes 2.5.24
scoped style No No 21.0[g 18] No[w 20] No
async script 6.0 12 1.9.2[g 19] Yes[w 21]
reversed ol No No 18.0[g 20] Yes[w 22]
download[citation needed] a,area No 13 20.0[g 21] Yes
sandbox iframe 6.0[t 4] 12 17.0[g 22] 533[w 23]
seamless iframe No No No[g 23] No[w 24]
Attribute Element MSHTML EdgeHTML Gecko WebKit Presto

Global attributes

MSHTML Gecko WebKit Presto
translate[24] No
Datasets (data-*) No 6.0[g 24] Yes[w 25] 2.8[p 10]
contextmenu 8.0[g 25] No[w 16] No
hidden 2.0[g 26] Yes[w 26] 2.7.70
contenteditable[25] <3.1[IE 5.5] 1.9 Yes 2.0
spellcheck[26] 6.0 1.8[g 27] Incorrect[w 27] 2.8[p 11]
draggable 1.9.1[g 28] 533[w 28] 2.10.270
dropzone No No[g 29] Yes 2.10.270
MSHTML Gecko WebKit Presto

Form elements and attributes

Many of these features can be emulated with third-party libraries.[citation needed]

MSHTML Gecko[g 30] WebKit[w 29] Presto[p 12]
Attributes
autocomplete 3.1 Yes Yes 2.0
list 6.0[t 5] 2.0[g 31] Yes[w 30]
required 6.0[t 6] 2.0[g 32] 528[lower-alpha 4][w 31]
multiple 6.0[t 7] 1.9.2[lower-alpha 5][g 33] 526[lower-alpha 5][w 32] 2.7[p 13]
pattern 6.0[t 8] 2.0[g 34] 528[lower-alpha 4][w 33][w 31] 2.0
min, max 6.0[t 9][t 10] 16.0[g 35][g 36] Yes[w 34]
step 6.0[t 11] 16.0[g 37] 528[w 35]
placeholder 6.0[t 12] 2.0[g 38] Yes 2.7[p 13]
form No 2.0[g 39] Yes[w 36] 2.0
autofocus 6.0[t 13] 2.0[g 40] 528[w 37]
maxlength 6.0[t 14] 2.0[g 41] 528[w 38]
novalidate 6.0[t 15] 2.0[g 42] 528[w 39] 2.8[p 11]
control No 2.0[g 43] No No
accept No 2.0[g 44] Yes[w 40] Yes
formtarget 6.0[t 16] 2.0[g 45] Yes[w 41] 2.8[p 11]
formaction 6.0[t 17] 2.0[g 46] Yes[w 41] 2.8[p 11]
formmethod 6.0[t 18] 2.0[g 47] Yes[w 41] 2.8[p 11]
formenctype 6.0[t 19] 2.0[g 47] Yes[w 41] 2.8[p 11]
formnovalidate 6.0[t 20] 2.0[g 48] 528[w 39] 2.8[p 11]
disabled (fieldset element) <3.1 2.0 No 2.7
Elements
datalist 6.0[t 21] 2.0[g 49] Yes[w 42] 2.0
keygen[27] No[t 22] 1.0[g 50] 125 1.0
output No 2.0[g 51] Yes[w 43] 2.0
progress 6.0[t 23] 6.0[g 52] Yes[w 44] 2.7[p 13]
meter No 16.0[g 53] Yes[w 45]
Input types
search 6.0[t 24] 2.0[g 54] 312[w 46] 2.7[p 13]
tel 6.0[t 25] 2.0[g 55] 528[w 47]
url 6.0[t 26] 2.0[g 56] 528[w 47] 2.0
email 6.0[t 27] 2.0[g 57] 528[w 47]
datetime No No[g 58] No[w 48][w 49]
date No Yes
month No
week No
time No
datetime-local No
number 6.0[t 28] 29.0[g 59] 528[w 47]
range 6.0[t 29] 23.0[g 60] Yes
color No 29.0[g 61] Yes[w 50] 2.7[p 13]
MSHTML Gecko WebKit Presto

APIs

MSHTML EdgeHTML Gecko WebKit Presto
getElementsByClassName[28] 5.0[t 30] 12 1.9[g 62] 525 2.1
registerProtocolHandler No No Yes[w 51] 2.10[p 14]
registerContentHandler 1.8[lower-alpha 6]
Cross-document messaging 4.0 12 1.9[g 64] Yes 2.0
Drag-and-drop 6.0 12 1.9.1[g 28] Yes 2.10.270[p 15]
pushState() and replaceState() 6.0[t 31] 12 2.0[g 65] 528[w 52] 2.9[p 16]
MSHTML EdgeHTML Gecko WebKit Presto

Other features

MSHTML Gecko WebKit Presto
Microdata No 16.0[g 66] No[w 53] Yes[p 17]
HTML5 Tokenizer 6.0[t 32] 2.0[g 67] Yes[w 54] 2.10[p 18]
HTML5 Tree Builder Yes[w 14]
HTML5 Fragment Parser Yes
<a rel="noreferrer"> No 33.0[g 68] Yes[w 55] No
window.onhashchange 4.0[t 33] 1.9.2[g 69] 528[w 56] 2.6[p 19]
element.classList No 1.9.2[g 70] Yes[w 57] 2.8[p 11]
dir="auto" No 20.0[g 71] 528+[w 58] No
MSHTML Gecko WebKit Presto

Next-generation additions

The WHATWG version of HTML also includes additional features that are not technically HTML5, which are described as "next-generation additions still in development" in the specification.[29]

MSHTML EdgeHTML Gecko WebKit Presto
<track> 6.0[t 34] 12
<a ping> No No Depends[g 72][lower-alpha 7] Depends[w 59][lower-alpha 8]

Related specifications

MSHTML EdgeHTML Gecko WebKit Presto
main element[30] No 12 21.0[g 75] Yes[w 60] No
template element[31] No 13 No Yes[w 61] No
Selectors API[32] 4.0[t 35] 12 1.9.1[g 76] 525[w 62] 2.2[p 20]
Web Storage[33] 4.0 12 1.9.1[g 77] 525 2.5[p 21]
Indexed Database API[34] 5.0[t 36] 12 16.0[g 78] Partial No
Web SQL Database (obsolete)[35] No No No[g 79] Yes[w 63] 2.5[p 21]
File API[36] 5.0 12 Yes[g 80] Yes[w 64][w 65] 2.8[p 22]
File API: Writer[37] 5.0 No No[g 81] Partial[w 66] No
File API: Directories and System[38] No No No[g 82] Yes[w 67]
Media Capture API[39] 2.0[lower-alpha 9] No 2.10[p 23]
Server-sent events[40] 6.0[g 84] Yes[w 68] 2.7[p 24][p 25]
WebSocket[41] 6.0[t 37] 12 11.0[g 85] 533 2.11[lower-alpha 10]
Web Workers[42][43] 6.0[t 38] 12 1.9.1[g 86] Yes 2.6[p 8][p 9]
Geolocation API[44] 5.0[t 39] 12 1.9.1[g 87] 533[w 69] 2.6[lower-alpha 11]
Offline Web applications[45] 6.0[t 40] 12 1.9.1[g 88] Yes 2.6[p 8][p 9]
Web Notifications[46] No No 22.0[47][48] only in Chrome[49] 25
MSHTML EdgeHTML Gecko WebKit Presto

Media functions

The HTML5 specification defines several tags which allow video and audio to be included natively and semantically in HTML markup.

Element attributes

Media elements allow some attributes to be set directly in the tag.

MSHTML Gecko WebKit Presto
<audio> attributes
src 5.0[t 1] 1.9.1 525 2.5
preload 2.0[note 8][g 89] Experimental[note 8]
autoplay 1.9.1 2.5
loop 11.0[g 90]
controls 1.9.1
<video> attributes
src 5.0[t 1] 1.9.1 525 2.5
preload 2.0[note 8][g 89] Experimental[note 8]
autoplay 1.9.1 2.5
loop 11.0[g 90]
controls 1.9.1
poster 1.9.2[g 91]
width 1.9.1
height
<source> attributes
src 5.0[t 1] 1.9.1 525[w 70] 2.5
type
media 15.0[g 92]
<track> attributes
kind 6.0[t 41] 24.0[g 93] Yes[w 71] No
label
src
srclang

DOM attributes

Some attributes related to media elements are exposed in the DOM.

MSHTML Gecko WebKit Presto[p 31]
Error state
MediaError 5.0 [t 42] 1.9.1 ? 2.5
Network state
src 5.0[t 1] 1.9.1 ? 2.5
currentSrc
networkState
preload 2.0[note 8][g 89] No
buffered 2.0[g 94]
load() 1.9.1 2.5
canPlayType() 533[w 72]
Ready state
readyState 5.0[t 1] 1.9.1 ? 2.5
seeking
Playback state
currentTime 5.0[t 1] 1.9.1 ? 2.5
startTime No
duration 1.9.1
paused
defaultPlaybackRate 20.0[g 95] No
playbackRate
played 15.0[g 96]
seekable 8.0[g 97]
ended 1.9.1 2.5
autoplay
loop 11.0[g 90]
play() 1.9.1
pause()
Controls
controls 5.0[t 1] 1.9.1 ? 2.5
volume
muted

DOM events

Media elements introduce new events to handle conditions which apply only to those elements, such as pausing/resuming.

MSHTML Gecko[g 98] WebKit Presto
loadstart 5.0[t 43] 1.9.1 ? ?
progress
suspend 1.9.2
abort 1.9.1
error
emptied
stalled 8.0[g 99]
play 1.9.1
pause
loadedmetadata
loadeddata
waiting
playing No
canplay 1.9.1
canplaythrough
seeking
seeked
timeupdate
ended
ratechange
durationchange
volumechange

Video format support

Main page: HTML5 video

This table documents support for video codecs by the <video> element.

MSHTML edgeHTML Gecko WebKit Presto
Ogg Theora Manual install[note 9] 1.9.1[g 100] Depends[note 10] 2.5
H.264 5.0[t 45] 33.0[50][g 101] Depends (525)[note 10][w 78] Depends[note 11]
WebM VP8 Manual install[note 9] Yes[51] 2.0[g 102][g 103] Depends (534)[w 79] 2.6.30[p 33][p 34][p 35]

Audio format support

This table documents support for audio codecs by the <audio> element.

MSHTML edgeHTML Gecko WebKit Presto
Ogg Vorbis Manual install[note 9] 1.9.1[g 100] Depends[note 10] 2.5
WAV PCM 525[note 10] 2.0
MP3 5.0[t 46] No[g 104] Depends[note 11]
AAC No
Speex Manual install[note 9] No[g 105] Depends[note 10] No
Opus No Yes[51] 15.0[g 106] Depends[note 10] No

Canvas functions

The following tables compare support for the drawing APIs of the Canvas element, a feature of HTML5. These tables compare native support by web browsers, without any plugins, add-ons or ECMAScript workarounds.

MSHTML Gecko WebKit Presto
getContext 5.0 1.8 Yes 2.0
toDataURL 1.8[g 107] Yes[w 80] 2.1[note 12]

Supported contexts

MSHTML Gecko WebKit Presto
2d 5.0 1.9.1 Partial 2.6
WebGL 7.0[t 47] Depends[g 108] Depends[w 81] 2.9.220[p 36]

Rendering Context 2D

MSHTML[t 48] Gecko[g 109] WebKit[w 82] Presto[p 37][p 38]
The canvas state
save 5.0 1.8 Yes 2.0
restore
Transformations
scale 5.0 1.8 Yes 2.0
rotate
translate
transform 2.6[note 13][p 39][p 40][p 41]
setTransform 2.6[note 13]
Compositing
globalAlpha 5.0 1.8 Yes 2.0
globalCompositeOperation
Colors and styles
strokeStyle 5.0 1.8 Yes 2.0
fillStyle
createLinearGradient
createRadialGradient
createPattern
Line styles
lineWidth 5.0 1.8 Yes 2.0
lineCap
lineJoin
miterLimit
Shadows
shadowOffsetX 5.0 1.9.1[g 110] Yes 2.4[note 14]
shadowOffsetY
shadowBlur
shadowColor
Simple shapes
clearRect 5.0 1.8 Yes 2.0
fillRect
strokeRect
Complex shapes
beginPath 5.0 1.8 Yes 2.0
closePath
moveTo
lineTo
quadraticCurveTo 1.8.1[note 15]
bezierCurveTo 1.8
arcTo 1.8.1[g 111]
rect 1.8
arc
fill
stroke
clip
isPointInPath
Focus management
drawFocusRing No 28.0[g 112] No No
Text
font 5.0 1.9.1[note 16] Yes No
textAlign 2.6
textBaseline
fillText
strokeText
measureText
Images
drawImage 5.0 1.8 Yes 2.0
createImageData 1.9.1[g 114][g 115] 2.7[p 42]
getImageData 1.9[g 115] 2.6[note 13]
putImageData 2.0[g 116][g 115]

See also

Notes

  1. ↑ <q> does not support nested quotes prior to Gecko 1.8.[2]
  2. ↑ For images, a frame will be added to the object. Other content types are not supported and the element is incorrectly implemented as an ActiveX wrapper. Nested objects fallback mechanism is not supported prior to version 7.[3]
  3. ↑ Prior to Internet Explorer 8.0 (MSHTML 4.0), and in earlier compatibility modes, the innerText is submitted instead of the value attribute.[4]
  4. ↑ Internet Explorer 9 (MSHTML 5.0) and earlier is limited to 31 <style> elements.[5][6]
  5. ↑ Supported for only img.
  6. ↑ 6.0 6.1 Supported for only font.
  7. ↑ MSHTML dropped support for wbr in version 5.0.[17]
  8. ↑ 8.0 8.1 8.2 8.3 8.4 Supports preload under the older name autobuffer.
  9. ↑ 9.0 9.1 9.2 9.3 Google released a WebM component for Media Foundation to allow the playback of WebM files in IE9 through the standard HTML5 <video> tag.[t 44] Xiph.org distributes OpenCodecs package, which amends Google's VP8 decoder with DirectShow-based codecs for Ogg Theora and Ogg Vorbis. VLC media player comes with "Web plugin" that uses VLC for playing multimedia from <video> and <audio> tags, enabling support for all formats VLC supports.
  10. ↑ 10.0 10.1 10.2 10.3 10.4 10.5 WebKit on macOS previously used QuickTime, and supported whatever formats that does.[w 73] By default, this includes H.264, MP3, AAC and WAV PCM, but not Ogg Theora or Vorbis. These are supported only if installed as third-party codecs, such as XiphQT. However, this relied on QuickTime 7 (not QuickTime X) to play these formats, and since Safari 12 and later versions of WebKit2, Apple officially dropped support for their QuickTime plugin (since it was developed for NPAPI, not HTML5). Google Chrome supports Theora, Vorbis, WebM, and MP3.[w 74] Chromium can be compiled to support anything that FFmpeg supports, and may or may not support patented formats such as H.264 and MP3.[w 75] Origyn Web Browser for MorphOS uses also FFmpeg for playing HTML5 media content.[w 76][w 77]
  11. ↑ 11.0 11.1 On Linux and FreeBSD, Presto 2.5 uses the system version of the GStreamer library, and is able to play any formats supported by GStreamer (including H.264, MP3, AAC and others, if codecs are installed). On other platforms, it only supports Ogg Theora for video; and Ogg Vorbis and WAVE PCM for sound.[p 32]
  12. ↑ Presto 2.0 had partial support for this property.
  13. ↑ 13.0 13.1 13.2 Opera 9.5(Presto 2.1) support table claims support for this, but support tables for Presto 2.1.1 up to 2.5 indicate that this property is not supported.
  14. ↑ Prior to version 2.4, Presto only had partial support for this property.
  15. ↑ Incorrect in Gecko 1.8
  16. ↑ Gecko had experimental support in version 1.9, with different names.[g 113]
  1. ↑ Beginning in 2007,[p 1] several experimental builds have been released with Ogg Theora support. Full support for the video element is included in Presto 2.5.[p 2]
  2. ↑ Presto added very limited support for the ECMAScript API related to the audio element in version 2.0 using only the WAV PCM codec, while not implementing the element itself.[p 3] Full support for the audio element with the Ogg Vorbis and WAV codecs is included in Presto 2.5.[p 2]
  3. ↑ MathML for CSS, XHTML only[p 5]
  4. ↑ 4.0 4.1 Form validation disabled in Safari Can I use... Support tables for HTML5, CSS3, etc.
  5. ↑ 5.0 5.1 For file inputs only.
  6. ↑ Limited to feed MIME types in 1.8 and 1.9.[g 63]
  7. ↑ The ping attribute is disabled by default, due to privacy concerns.[g 73][g 74]
  8. ↑ The ping attribute is disabled by default, thus needs to be manually enabled by each port
  9. ↑ Currently partially supported in nightly builds for the Linux platform.[g 83]
  10. ↑ WebSocket support was added in Presto 2.7[p 26] but was disabled due to security reasons.[p 27] In Presto 2.11 protocol implementation was updated to version RFC 6455[p 28] which resolved security issue.
  11. ↑ Geolocation support was added in Presto 2.5, but was not enabled by default until 2.6.[p 29][p 30][p 8][p 9]

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  31. ↑ HTML Templates, W3C, 14 February 2013, http://www.w3.org/TR/html-templates/ 
  32. ↑ Selectors API Level 1, W3C, http://dev.w3.org/2006/webapi/selectors-api/ 
  33. ↑ Web Storage, W3C, http://dev.w3.org/html5/webstorage/ 
  34. ↑ Indexed Database API, W3C, http://www.w3.org/TR/IndexedDB/ 
  35. ↑ Web SQL Database, W3C, http://dev.w3.org/html5/webdatabase/ 
  36. ↑ File API, W3C, 26 October 2010, http://www.w3.org/TR/FileAPI/ 
  37. ↑ File API: Writer, W3C, 26 October 2010, http://www.w3.org/TR/file-writer-api/ 
  38. ↑ File API: Directories and System, W3C, 26 October 2010, http://dev.w3.org/2009/dap/file-system/file-dir-sys.html 
  39. ↑ Media Capture API, W3C, http://dev.w3.org/2009/dap/camera/ 
  40. ↑ Server-Sent Events, W3C, https://www.w3.org/TR/eventsource/ 
  41. ↑ The Web Sockets API, W3C, http://dev.w3.org/html5/websockets/ 
  42. ↑ Web Workers, W3C, http://dev.w3.org/html5/workers/ 
  43. ↑ Resig, John (21 July 2009), Computing with JavaScript Web Workers, http://ejohn.org/blog/web-workers/ 
  44. ↑ Geolocation API Specification, W3C, http://dev.w3.org/geo/api/spec-source.html 
  45. ↑ 5.6 Offline Web applications — HTML5, W3C, https://www.w3.org/TR/html5/browsers.html#offline 
  46. ↑ Web Notifications, W3C, http://www.w3.org/TR/notifications/ 
  47. ↑ Available only in Firefox Mobile as of Gecko 2.0, https://developer.mozilla.org/en/DOM/Displaying_notifications 
  48. ↑ 594543 – Implement Desktop Notifications, https://bugzilla.mozilla.org/show_bug.cgi?id=594543 
  49. ↑ There is a bug in Chrome but is working, http://code.google.com/p/chromium/issues/detail?id=34961 
  50. ↑ via OpenH264
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MSHTML
  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Internet Explorer Platform Preview Guide for Developers, Microsoft, http://msdn.microsoft.com/en-us/ie/ff468705.aspx 
  2. ↑ Ruby, https://docs.google.com/View?id=dcgd8hk6_0ccsw4td4 
  3. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named ie9-media
  4. ↑ Rossi, Jacob (14 July 2011), Defense in Depth: Locking Down Mash-Ups with HTML5 Sandbox, Microsoft, http://blogs.msdn.com/b/ie/archive/2011/07/14/defense-in-depth-locking-down-mash-ups-with-html5-sandbox.aspx 
  5. ↑ "list attribute | list property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772937. 
  6. ↑ "required attribute | required property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772943. 
  7. ↑ "multiple property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772940. 
  8. ↑ "pattern attribute | pattern property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772941. 
  9. ↑ "min attribute | min property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772939. 
  10. ↑ "max attribute | max property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772938. 
  11. ↑ "step property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772944. 
  12. ↑ "placeholder attribute | placeholder property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772942. 
  13. ↑ "autofocus attribute | autofocus property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772924. 
  14. ↑ "maxlength attribute | maxLength property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/ms534157. 
  15. ↑ "noValidate property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772929. 
  16. ↑ "formTarget property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772936. 
  17. ↑ "formAction attribute | formAction property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772932. 
  18. ↑ "formMethod attribute | formMethod property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772934. 
  19. ↑ "formEnctype attribute | formEnctype property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772933. 
  20. ↑ "formNoValidate attribute | formNoValidate property (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772935. 
  21. ↑ "datalist object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772925. 
  22. ↑ PRB: HTML Tag KEYGEN Not Supported in Internet Explorer, Microsoft, http://support.microsoft.com/kb/190282 
  23. ↑ "Progress element | Progress object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh772953. 
  24. ↑ "input type=search object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh826024. 
  25. ↑ "input type=tel element | input type=tel object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh773066. 
  26. ↑ "input type=url element | input type=url object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh773067. 
  27. ↑ "input type=email element | input type=email object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh773063. 
  28. ↑ "input type=number element | input type=number object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh773064. 
  29. ↑ "input type=range element | input type=range object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/ie/hh773065. 
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  31. ↑ HTML5 History in IE10, Microsoft, http://blogs.msdn.com/b/ie/archive/2011/10/31/html5-history-in-ie10.aspx 
  32. ↑ HTML5 Parsing in IE10, Windows Internet Explorer Engineering Team, 6 July 2001, http://blogs.msdn.com/b/ie/archive/2011/07/06/html5-parsing-in-ie10.aspx 
  33. ↑ onhashchange Event, Microsoft, http://msdn.microsoft.com/en-us/library/cc288209%28VS.85%29.aspx 
  34. ↑ "track element | track object (Internet Explorer)". Microsoft. http://msdn.microsoft.com/en-us/library/hh772958. 
  35. ↑ Resig, John (6 March 2008), JavaScript in Internet Explorer 8, http://ejohn.org/blog/javascript-in-internet-explorer-8/ 
  36. ↑ IndexedDB Prototype Available for Internet Explorer, http://blogs.msdn.com/b/interoperability/archive/2010/12/21/indexeddb-prototype-available-for-internet-explorer.aspx 
  37. ↑ WebSockets in Windows Consumer Preview, IE Engineering Team, http://blogs.msdn.com/b/ie/archive/2012/03/19/websockets-in-windows-consumer-preview.aspx 
  38. ↑ Leithead, Travis (2 July 2011), Web Workers in IE10: Background JavaScript Makes Web Apps Faster, Microsoft, http://blogs.msdn.com/b/ie/archive/2011/07/01/web-workers-in-ie10-background-javascript-makes-web-apps-faster.aspx 
  39. ↑ Acting on Feedback: IE9 Release Candidate Available for Download, http://blogs.msdn.com/b/ie/archive/2011/02/10/acting-on-feedback-ie9-release-candidate-available-for-download.aspx 
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  42. ↑ MSDN HTMLMediaError Object for Internet Explorer 9, Microsoft, http://msdn.microsoft.com/en-us/library/gg130962(v=VS.85).aspx 
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  44. ↑ Jazayeri, Mike (1 January 2011), More about the Chrome HTML Video Codec Change, https://blog.chromium.org/2011/01/more-about-chrome-html-video-codec.html 
  45. ↑ McCracken, Harry (1 March 2010), Microsoft Previews the Revamped Internet Explorer 9 Platform, Technologizer, http://technologizer.com/2010/03/16/ie9-platform-preview/ 
  46. ↑ Branscombe, Mary (1 March 2010), Microsoft previews Internet Explorer 9, TechRadar UK, http://www.techradar.com/news/internet/web/microsoft-steps-towards-faster-internet-explorer-9-677263, retrieved 19 April 2018 
  47. ↑ "Introducing IE11: The Best Way to Experience the Web on Modern Touch Devices". Microsoft. http://blogs.msdn.com/b/ie/archive/2013/06/26/introducing-ie11-the-best-way-to-experience-the-web-on-modern-touch-devices.aspx. 
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Gecko
  1. ↑ Bug 559284 – Support for HTML5 sectioning elements (article, aside, footer, header, hgroup, nav, section): style as display:block, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=559284 
  2. ↑ Bug 562008 – HTML5 section DOM elements should be of type HTMLElement, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=562008 
  3. ↑ Bug 629801 – Implement HTML5 <time> element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=629801 
  4. ↑ Bug 485377 – Implement HTML5's <mark> tag, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=485377 
  5. ↑ Bug 33339 – HTML5 <ruby> support, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=33339, retrieved 3 December 2014 
  6. ↑ Implement the HTML5 dialog element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=840640 
  7. ↑ Implement the figure element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=573356 
  8. ↑ Support media attribute of source elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=449363 
  9. ↑ Canvas – MDC, Mozilla, https://developer.mozilla.org/en-US/docs/Web/HTML/Canvas 
  10. ↑ Bug 591737 – Support for HTML5's <details> and <summary>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=591737 
  11. ↑ Implement the HTML5 command API, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=670898 
  12. ↑ Implement HTML5 toolbar menus, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=746087 
  13. ↑ Bug 613149 – Support HTML5 bdi element and CSS property unicode-bidi: isolate, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=613149 
  14. ↑ Bug 839371 – Implement HTML5 <data> element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=839371 
  15. ↑ Bug 870022 – Implement 'picture' element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=870022 
  16. ↑ Bug 596650 – Use the "sizes" attribute to select the best web app icon, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=596650 
  17. ↑ Bug 441770 – Add 'sizes' getter/setter to link elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=441770 
  18. ↑ Bug 508725 – Implement HTML 5 scoped attribute on STYLE tag, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=508725 
  19. ↑ Bug 503481 – Implement async attribute of script element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=503481 
  20. ↑ Bug 601912 – HTML 5's <li> reversed attribute not supported, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=601912 
  21. ↑ Bug 676619 – Implement proposed download attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=676619 
  22. ↑ Bug 341604- Implement IFRAME's sandbox attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=341604 
  23. ↑ Bug 631218 – implement the HTML5 seamless attribute for the iframe element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=631218 
  24. ↑ Bug 560112 – Implement HTML5 dataset attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=560112 
  25. ↑ Changes for web developers, Mozilla, https://developer.mozilla.org/en/Firefox_8_for_developers#HTML 
  26. ↑ Bug 567663 – Implement the hidden attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=567663 
  27. ↑ Controlling spell checking in HTML forms, Mozilla, https://developer.mozilla.org/en-US/docs/Web/HTML/Controlling_spell_checking_in_HTML_formsControlling_spell_checking_in_HTML_forms 
  28. ↑ 28.0 28.1 Blizzard, Christopher (15 July 2009), HTML5 drag and drop in Firefox 3.5, https://hacks.mozilla.org/2009/07/html5-drag-and-drop/ 
  29. ↑ Bug 723008 – Implement dropzone attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=723008 
  30. ↑ User:Mounir.lamouri/HTML5 Forms, Mozilla, https://wiki.mozilla.org/User:Mounir.lamouri/HTML5_Forms 
  31. ↑ Bug 556007 – Implement list attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=556007 
  32. ↑ Bug 345822 – Implement required attribute for <input type="text">, <textarea>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=345822 
  33. ↑ Bug 523771 – Support <input type=file multiple>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=523771 
  34. ↑ Bug 345512 – Implement pattern attribute for <input type="text">, <textarea>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=345512 
  35. ↑ Bug 635499- Implement the max attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=635499 
  36. ↑ Bug 635553- Implement the min attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=635553 
  37. ↑ Bug 556009 – Implement step attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=556009 
  38. ↑ Bug 457800 – Implement placeholder attribute for text input fields, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=457800 
  39. ↑ Bug 588683 – Implement form attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=588683 
  40. ↑ Bug 546995 – Implement autofocus attribute for some form elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=546995 
  41. ↑ Bug 535043 – Support maxlength on textarea, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=535043 
  42. ↑ Bug 556013 – Implement novalidate attribute for form elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=556013 
  43. ↑ Bug 562932 – Implement control attribute for label element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=562932 
  44. ↑ Bug 377624 – Implement the accept attribute for the form and file upload controls form "image/*", Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=377624 , Bug 565274 – Implement the accept attribute for the form and file upload controls for custom MIME types, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=565274 
  45. ↑ Bug 566064 – HTMLInputElement and HTMLButtonElement should implement formtarget attribute which override HTMLFormElement target attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=566064 
  46. ↑ Bug 566160 – HTMLInputElement and HTMLButtonElement should implement formaction attribute which override HTMLFormElement action attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=566160 
  47. ↑ 47.0 47.1 Bug 582412 – Implement @formmethod, @formenctype, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=582412 
  48. ↑ Bug 589696 – Implement formnovalidate attribute for submit controls, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=589696 
  49. ↑ Bug 555840 – Implement datalist element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=555840 
  50. ↑ Bug 101019 – Implement keygen element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=101019 
  51. ↑ Bug 346485 – Implement Web Forms 2 <html:output/>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=346485 
  52. ↑ Bug 514437 – Implement HTML 5 progress element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=514437 
  53. ↑ Bug 555985 – Implement meter element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=555985 
  54. ↑ Bug 456229 – Implement <input type="search"> for compatibility with Safari, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=456229 
  55. ↑ Bug 557620 – Implement <input type="telephone">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=557620 
  56. ↑ Bug 344615 – Implement <input type="url">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=344615 
  57. ↑ Bug 555559- Implement <input type="email">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=555559 
  58. ↑ Bug 446510 – Implement <input type="date"> and other date controls, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=446510 
  59. ↑ Bug 344616 – Implement <input type="number">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=344616 
  60. ↑ Bug 344618 – Implement <input type="range">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=344618 
  61. ↑ Bug 547004 – Implement <input type="color">, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=547004, retrieved 18 February 2010 
  62. ↑ Bug 357450 – Implement getElementsByClassName, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=357450 
  63. ↑ Navigator.registerContentHandler(), Mozilla, https://developer.mozilla.org/en-US/docs/Web/API/Navigator.registerContentHandler 
  64. ↑ Bug 387706 – (postMessage) Implement HTML5's cross-document messaging API (postMessage), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=387706 
  65. ↑ Bug 500328 – Add support for HTML5 History.pushState(), History.replaceState() methods, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=500328 
  66. ↑ Bug 591467 – Implement HTML5 Microdata API, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=591467 
  67. ↑ Bug 373864 – Replace HTML parser with an HTML5 parser, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=373864 
  68. ↑ Bug 530396 – Support for <a rel="noreferrer"> functionality, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=530396 
  69. ↑ Bug 385434 – Add support for HTML5 onhashchange (event for named anchor changes), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=385434 
  70. ↑ Bug 501257 – Implement HTML 5's HTMLElement.classList property, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=501257 
  71. ↑ Bug 548206 – Implement the auto value for the HTML dir attribute, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=548206 
  72. ↑ Bug 319368 – Implement <a ping>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=319368 
  73. ↑ Bug 324645 – <a ping> support should be opt-in, not opt-out, for Gecko-based apps, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=324645 
  74. ↑ Bug 319368 – Implement <a ping> (Comment 64), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=319368#c64 
  75. ↑ Bug 820508 – Add support for <main> element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=820508 
  76. ↑ document.querySelector, https://developer.mozilla.org/En/DOM/Document.querySelector 
  77. ↑ DOM Storage, Mozilla, https://developer.mozilla.org/En/DOM:Storage, retrieved 19 April 2018 
  78. ↑ Implement Indexed Database API, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=IndexedDB 
  79. ↑ Bug 416327 – Implement Client-side database storage, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=416327 
  80. ↑ Using files from web applications, Mozilla, https://developer.mozilla.org/en/Using_files_from_web_applications 
  81. ↑ Bug 557540 – Implement File API: Writer, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=557540 
  82. ↑ FileSystem API, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=910387 
  83. ↑ Bug 692955 – Camera support for desktop, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=692955 
  84. ↑ Bug 338583 – Add support for Server-Sent DOM Events (Remote Events), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=338583 
  85. ↑ Bug 472529 – Support for Web sockets' HTML5 Draft Recommendation, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=472529 
  86. ↑ Bug 437152 – implement worker threads, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=437152 
  87. ↑ Using geolocation, Mozilla, https://developer.mozilla.org/En/Using_geolocation 
  88. ↑ Offline resources in Firefox, Mozilla, https://developer.mozilla.org/en/offline_resources_in_firefox 
  89. ↑ 89.0 89.1 89.2 Bug 548523 – HTML 5 media attribute 'autobuffer' has been renamed to 'preload', Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=548523 
  90. ↑ 90.0 90.1 90.2 Bug 449157 – Implement the looping attributes in media elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=449157 
  91. ↑ Bug 449156 – Implement the poster attribute for the <video> element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=449156 
  92. ↑ Bug 449363 – Support media attribute of <source> elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=449363 
  93. ↑ Bug 629350 – Implement the track element, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=629350 
  94. ↑ Bug 462957 – Implement nsIDOMHTMLMediaElement::GetBuffered(), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=462957 
  95. ↑ Bug 495040 – Implement playbackRate, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=495040 
  96. ↑ Bug 462959 – Implement nsIDOMHTMLMediaElement::GetPlayed(), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=462959 
  97. ↑ Bug 462960 – Implement nsIDOMHTMLMediaElement::GetSeekable(), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=462960 
  98. ↑ Using audio and video in Firefox – Media events, Mozilla, https://developer.mozilla.org/En/Using_audio_and_video_in_Firefox#Media_events, retrieved 19 April 2018 
  99. ↑ Bug 481082 – Video controls should listen for |stalled| event, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=481082 
  100. ↑ 100.0 100.1 Shepherd, Eric (2 January 2010), Media formats supported by the audio and video elements, Mozilla, https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements, retrieved 11 October 2009 
  101. ↑ Bug 799318 – [meta Support H.264/AAC/MP3 video/audio playback on desktop Firefox], Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=799318 
  102. ↑ Bug 566243 – Merge mozilla-webmedia repository to mozilla-central, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=566243 
  103. ↑ Firefox WebM Builds, Mozilla, https://nightly.mozilla.org/webm/ 
  104. ↑ Bug 562730 – Reproducing Mp3 files with html5, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=562730 
  105. ↑ Bug 476752 – support the speex voice codec in <audio> and <video> elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=476752 
  106. ↑ Bug 674225 – support the Opus voice codec in <audio> and <video> elements, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=674225 
  107. ↑ "The Graphics Canvas element - HTML: HyperText Markup Language | MDN". https://developer.mozilla.org/en/HTML/Element/canvas. 
  108. ↑ WebGL – MDC, Mozilla, https://developer.mozilla.org/en/WebGL 
  109. ↑ Canvas tutorial – MDC, https://developer.mozilla.org/en/Canvas_tutorial 
  110. ↑ Bug 310682 – Implement shadows for <html:canvas>, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=310682 
  111. ↑ Bug 333613 – update canvas on branch, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=333613 
  112. ↑ Bug 540456 – Support HTML5 canvas drawFocusRing(), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=540456 
  113. ↑ Bug 436904 – implementing Canvas text spec, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=436904 
  114. ↑ Bug 433004 – Support canvas.getContext("2d").createImageData(), Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=433004 
  115. ↑ 115.0 115.1 115.2 Pixel manipulation with canvas – MDC, https://developer.mozilla.org/en/html/canvas/pixel_manipulation_with_canvas 
  116. ↑ Bug 498826 – canvas putImageData doesn't implement optional arguments, Mozilla, https://bugzilla.mozilla.org/show_bug.cgi?id=498826 
Webkit
  1. ↑ Bug 32936 – HTML5 <section> element support, WebKit, https://bugs.webkit.org/show_bug.cgi?id=32936 
  2. ↑ Bug 27937 – Implement HTML5 nav element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=27937 
  3. ↑ Bug 32942 – HTML5 <article> element support, WebKit, https://bugs.webkit.org/show_bug.cgi?id=32942 
  4. ↑ Bug 32943 – HTML5 <aside> element support, WebKit, https://bugs.webkit.org/show_bug.cgi?id=32943 
  5. ↑ Bug 33369 – Implement HTML5 <hgroup> element., WebKit, https://bugs.webkit.org/show_bug.cgi?id=33369 
  6. ↑ Bug 32944 – HTML5 <header> and <footer> elements support, WebKit, https://bugs.webkit.org/show_bug.cgi?id=32944 
  7. ↑ Bug 41144 – Implement the HTML5 <mark> element., WebKit, https://bugs.webkit.org/show_bug.cgi?id=41144 
  8. ↑ Bug 28420 – Implement HTML5 <ruby> rendering, WebKit, https://bugs.webkit.org/show_bug.cgi?id=28420 
  9. ↑ Steiner, Roland (20 January 2010), "Ruby Rendering in WebKit", Surfin' Safari (WebKit), https://www.webkit.org/blog/948/ruby-rendering-in-webkit/, retrieved 21 January 2010 
  10. ↑ Bug 84635 – Implement the DIALOG element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=84635 
  11. ↑ Bug 50684 – Default styling rules for the figure and figcaption elements, WebKit, https://bugs.webkit.org/show_bug.cgi?id=50684 
  12. ↑ "Google subtracts MathML from Chrome, and anger multiplies". CNET. 5 November 2013. http://www.cnet.com/news/google-subtracts-mathml-from-chrome-and-anger-multiplies/. 
  13. ↑ Bug 42373 – Changes to enable MathML, WebKit, https://bugs.webkit.org/show_bug.cgi?id=42373 
  14. ↑ 14.0 14.1 Seidel, Eric (5 August 2010). "The HTML5 Parsing Algorithm". Surfin' Safari. WebKit Project. http://webkit.org/blog/1273/the-html5-parsing-algorithm/. 
  15. ↑ 15.0 15.1 Bug 50309 – HTML5 <details> and <summary> initial implementation, WebKit, https://bugs.webkit.org/show_bug.cgi?id=50309 
  16. ↑ 16.0 16.1 Bug 50555 – implement the HTML5 "context menu" feature (contextmenu attribute), WebKit, https://bugs.webkit.org/show_bug.cgi?id=50555 
  17. ↑ Bug 50913 – [BiDi Add support for the BDI element], WebKit, https://bugs.webkit.org/show_bug.cgi?id=50913 
  18. ↑ Bug 116963 – (picture) Implement 'picture' element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=116963 
  19. ↑ Bug 37674 – Implement sizes attribute for link tag from HTML5, WebKit, https://bugs.webkit.org/show_bug.cgi?id=37674 
  20. ↑ Bug 49142 – Implement HTML5 style scoped attribute, WebKit, https://bugs.webkit.org/show_bug.cgi?id=49142 
  21. ↑ Bug 20710 – WebKit should support defer and async on script elements, WebKit, https://bugs.webkit.org/show_bug.cgi?id=20710 
  22. ↑ Bug 36724 – Add support for ol reversed, WebKit, https://bugs.webkit.org/show_bug.cgi?id=36724 
  23. ↑ Bug 21288 – Implement HTML5's sandbox attribute for iframes, WebKit, https://bugs.webkit.org/show_bug.cgi?id=21288 
  24. ↑ Bug 45950 – Implement HTML5's seamless attribute for iframes, WebKit, https://bugs.webkit.org/show_bug.cgi?id=45950 
  25. ↑ Bug 41146 – Implement the .dataset DOM property, WebKit, https://bugs.webkit.org/show_bug.cgi?id=41146 
  26. ↑ Bug 40511 – Implement HTML5 hidden attribute, WebKit, https://bugs.webkit.org/show_bug.cgi?id=40511 
  27. ↑ Bug 25537 – WebKit does not follow HTML5 spellcheck attribute logic for words split by spans, WebKit, https://bugs.webkit.org/show_bug.cgi?id=25537 
  28. ↑ Bug 26262 – Implement HTML5 draggable, WebKit, https://bugs.webkit.org/show_bug.cgi?id=26262 
  29. ↑ Bug 19264 – HTML5 Forms Implementation – Master bug, WebKit, https://bugs.webkit.org/show_bug.cgi?id=19264 
  30. ↑ Bug 27247 – [HTML5][Forms] Part 5 of datalist&list: UI of 'list' attribute of <input>, WebKit, https://bugs.webkit.org/show_bug.cgi?id=27247 
  31. ↑ 31.0 31.1 Bug 59019 – Enable the interactive form validation feature by default, WebKit, https://bugs.webkit.org/show_bug.cgi?id=59019 
  32. ↑ Almaer, Dion (6 March 2009), input type="file" multiple; now in a real browser!, Ajaxian, http://ajaxian.com/archives/input-typefile-multiple-now-in-a-real-browser 
  33. ↑ Bug 25552 – Support for HTML5 Forms "pattern" attribute, WebKit, https://bugs.webkit.org/show_bug.cgi?id=25552 
  34. ↑ Bug 27450 – Support HTML5 min/max attributes and associated CSS selectors, WebKit, https://bugs.webkit.org/show_bug.cgi?id=27450 
  35. ↑ Bug 27451 – Support HTML5 step attribute, WebKit, https://bugs.webkit.org/show_bug.cgi?id=27451 
  36. ↑ Bug 47813 – [HTML5 "form" attribute support for form control elements], WebKit, https://bugs.webkit.org/show_bug.cgi?id=47813 
  37. ↑ Bug 18887 – WF2 Support for autofocus controls, WebKit, https://bugs.webkit.org/show_bug.cgi?id=18887 
  38. ↑ Bug 29292 – [HTML5][Forms] Support for <textarea maxlength=N>, WebKit, https://bugs.webkit.org/show_bug.cgi?id=29292 
  39. ↑ 39.0 39.1 Bug 28145 – novalidate/formnovalidate support, WebKit, https://bugs.webkit.org/show_bug.cgi?id=28145 
  40. ↑ Bug 45079 – HTML <input type="file"> accept attribute, WebKit, https://bugs.webkit.org/show_bug.cgi?id=45079 
  41. ↑ 41.0 41.1 41.2 41.3 Bug 49240 – Implement formaction, formenctype, formmethod and formtarget attributes for the input tag, WebKit, https://bugs.webkit.org/show_bug.cgi?id=49240 
  42. ↑ Bug 27247 – Master bug of datalist element and list attribute implementation, WebKit, https://bugs.webkit.org/show_bug.cgi?id=27247 
  43. ↑ Bug 29363 – [HTML5][Forms] Support for <output> element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=29363 
  44. ↑ Bug 37307 – [Chromium] Support for <progress> element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=37307 
  45. ↑ Bug 37074 – Support for HTMLMeterElement, WebKit, https://bugs.webkit.org/show_bug.cgi?id=37074 
  46. ↑ Hyatt, David (July 2004), The Search Field, http://weblogs.mozillazine.org/hyatt/archives/2004_07.html#005890 
  47. ↑ 47.0 47.1 47.2 47.3 Bug 25554 – Implement HTML5 Input element types for Text Fields, WebKit, https://bugs.webkit.org/show_bug.cgi?id=25554 
  48. ↑ Bug 29004 – [HTML5][Forms] simple implementation of date&time types of INPUT element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=29004 
  49. ↑ Bug 29359 – Add UIs for date and time types of <input>, https://bugs.webkit.org/show_bug.cgi?id=29359 
  50. ↑ Bug 28966 – [HTML5][Forms] <input type=color> simple implementation, WebKit, https://bugs.webkit.org/show_bug.cgi?id=28966 
  51. ↑ Bug 44740 – registerProtocolHandler and registerContentHandler, WebKit, https://bugs.webkit.org/show_bug.cgi?id=44740 
  52. ↑ Bug 32052 – Implement HTML5 state object history API, WebKit, https://bugs.webkit.org/show_bug.cgi?id=32052 
  53. ↑ Bug 68609 – Implement HTML5 Microdata (master bug), https://bugs.webkit.org/show_bug.cgi?id=68609 
  54. ↑ Bug 39259 – MASTER: WebKit needs an HTML5 Tokenizer, https://bugs.webkit.org/show_bug.cgi?id=39259 
  55. ↑ Chapin, Nate (19 November 2009), WebKit nightlies support HTML5 noreferrer link relation, https://www.webkit.org/blog/907/webkit-nightlies-support-html5-noreferrer-link-relation/, retrieved 20 November 2009 
  56. ↑ Bug 21605 – Support for HTML5 "hashchange" event, WebKit, https://bugs.webkit.org/show_bug.cgi?id=21605 
  57. ↑ Bug 20709 – Implement HTML 5's HTMLElement.classList property, WebKit, https://bugs.webkit.org/show_bug.cgi?id=20709 
  58. ↑ Bug 50916 – Add support for dir=auto, WebKit, https://bugs.webkit.org/show_bug.cgi?id=50916 
  59. ↑ Bug 30458 – Implement <a ping>, WebKit, https://bugs.webkit.org/show_bug.cgi?id=30458 
  60. ↑ Bug 103172 – implement the HTML <main> element, WebKit, https://bugs.webkit.org/show_bug.cgi?id=103172 
  61. ↑ Bug 113016 – HTMLStackItem should include <template> as a special tag, WebKit, https://bugs.webkit.org/show_bug.cgi?id=113016 
  62. ↑ Smith, David (7 February 2008), querySelector and querySelectorAll, http://webkit.org/blog/156/queryselector-and-queryselectorall/, retrieved 19 April 2018 
  63. ↑ Eidson, Brady (19 October 2007), WebKit Does HTML5 Client-side Database Storage, http://webkit.org/blog/126/webkit-does-html5-client-side-database-storage/, retrieved 22 October 2009 
  64. ↑ Bug 36567 – Implement FileAPI/FileWriter, WebKit, https://bugs.webkit.org/show_bug.cgi?id=36567 
  65. ↑ Bug 38157 – Implement FileReader class, WebKit, https://bugs.webkit.org/show_bug.cgi?id=38157 
  66. ↑ Bug 44358 – Implement FileWriter, WebKit, https://bugs.webkit.org/show_bug.cgi?id=44358 
  67. ↑ Bug 42903 – Implement FileAPI: Directories and System (a.k.a. FileSystem API), WebKit, https://bugs.webkit.org/show_bug.cgi?id=42903 
  68. ↑ Bug 14997 – Support for server-sent DOM events, WebKit, https://bugs.webkit.org/show_bug.cgi?id=14997 
  69. ↑ Bug 21475 – Provide support for the Geolocation API, WebKit, https://bugs.webkit.org/show_bug.cgi?id=21475 
  70. ↑ Pfeiffer, Silvia (1 December 2009), [whatwg] Quality Values for Media Source Elements, http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-December/024519.html, retrieved 19 April 2018 
  71. ↑ April 2012 HTML5 Media Element & WebAudio – WebKit, http://trac.webkit.org/wiki/April%202012%20HTML5%20Media%20Element%20%26%20WebAudio 
  72. ↑ Bug 24364 – Add HTMLMediaElement canPlayType method, WebKit, https://bugs.webkit.org/show_bug.cgi?id=24364 
  73. ↑ Koivisto, Antti (1 November 2007), HTML5 Media Support, WebKit, http://webkit.org/blog/140/html5-media-support/ 
  74. ↑ Look for "GOOGLE_CHROME_BUILD", https://src.chromium.org/viewvc/chrome/trunk/src/net/base/mime_util.cc?view=markup#vc_markup 
  75. ↑ DiBona, Chris (1 June 2009), [whatwg] Google's use of FFmpeg in Chromium and Chrome Was: Re: MPEG-1 subset proposal for HTML5 video codec, http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-June/020035.html, retrieved 19 April 2018 
  76. ↑ Origyn Web Browser for MorphOS, Fabian Coeurjoly, http://fabportnawak.free.fr/owb/, retrieved 4 January 2010 
  77. ↑ Holwerda, Thom (8 March 2010), Origyn Web Browser 1.7 Supports HTML5 Media, More, OSNews, http://www.osnews.com/story/22971/Origyn_Web_Browser_1_7_Supports_HTML5_Media_More, retrieved 8 March 2010 
  78. ↑ HTML Video Codec Support in Chrome, https://blog.chromium.org/2011/01/html-video-codec-support-in-chrome.html, retrieved 22 January 2010 
  79. ↑ Bankoski, Jim (1 May 2010), WebM and VP8 land in Chromium, https://blog.chromium.org/2010/05/webm-and-vp8-land-in-chromium.html 
  80. ↑ WebKit DOM Programming Topics: Using the Canvas, https://developer.apple.com/safari/library/documentation/appleapplications/conceptual/SafariJSProgTopics/Tasks/Canvas.html 
  81. ↑ Marrin, Chris (1 October 2009), WebGL Now Available in WebKit Nightlies, Surfin' Safari, http://webkit.org/blog/603/webgl-now-available-in-webkit-nightlies/ 
  82. ↑ WebKit DOM reference – CanvasRenderingContext2D, https://developer.apple.com/safari/library/documentation/appleapplications/Reference/WebKitDOMRef/CanvasRenderingContext2D_idl/Classes/CanvasRenderingContext2D/index.html#//apple_ref/js/cl/CanvasRenderingContext2D 
Presto
  1. ↑ "A call for video on the web – Opera <video> release on Labs", Opera, http://dev.opera.com/blog/a-call-for-video-on-the-web/ 
  2. ↑ 2.0 2.1 "Opera Core Concerns – (re-)Introducing <video>", Opera, http://my.opera.com/core/blog/2009/12/31/re-introducing-video 
  3. ↑ "Web specifications supported in Opera 9.5", Opera, http://www.opera.com/docs/specs/opera95/, retrieved 19 April 2018 
  4. ↑ "canvas Support in Opera", Opera, http://www.opera.com/docs/specs/opera9/canvas/, retrieved 19 April 2018 
  5. ↑ Chavchanidze, George (12 June 2008), "Opera 9.5 released", Opera, http://my.opera.com/mathml/blog/2008/06/12/opera-9-5-released 
  6. ↑ "Implemented full support for the part of the HTML5 specification entitled "Parsing HTML documents".", Opera, http://www.opera.com/docs/specs/presto29/#m29-224 
  7. ↑ "HTML5 elements, attributes, and APIs support in Opera Presto 2.8", Opera, http://www.opera.com/docs/specs/presto28/html5/#elements 
  8. ↑ 8.0 8.1 8.2 8.3 Haavard (14 June 2010), "HTML5, and then some", Opera, http://my.opera.com/desktopteam/blog/2010/06/14/html5-and-then-some 
  9. ↑ 9.0 9.1 9.2 9.3 Kleinhout, Huib (1 July 2010), "Opera 10.60 goes final", Opera, http://my.opera.com/desktopteam/blog/2010/07/01/opera-10-60-goes-final 
  10. ↑ "HTML5 elements, attributes, and APIs support in Opera Presto 2.8", Opera, http://www.opera.com/docs/specs/presto28/html5 
  11. ↑ 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 "HTML5 elements, attributes, and APIs support in Opera Presto 2.8", Opera, http://www.opera.com/docs/specs/presto28/html5/ 
  12. ↑ "HTML 5 Forms support in Opera Presto 2.2", Opera, http://www.opera.com/docs/specs/presto22/forms/ 
  13. ↑ 13.0 13.1 13.2 13.3 13.4 Ødegaard, Ruarí (6 December 2010). "Extension improvements, updates to Core and some other nice fixes". Opera. http://my.opera.com/desktopteam/blog/2010/12/06/extension-improvements-updates-to-core-and-some-other-nice-fixes. 
  14. ↑ Opera 11.60 changelog, 6 December 2011, http://www.opera.com/docs/changelogs/windows/1160/, retrieved 19 April 2018 
  15. ↑ "Web specifications support in Opera Presto 2.10 – Drag and Drop", Opera, http://www.opera.com/docs/specs/presto2.10/ 
  16. ↑ "Introducing the HTML5 History API", Opera, http://dev.opera.com/articles/html5-history-api/ 
  17. ↑ Web specifications support in Opera Presto 2.9, http://www.opera.com/docs/specs/presto29/ 
  18. ↑ "Opera 11.60 for Windows changelog", Opera, 6 December 2011, http://www.opera.com/docs/changelogs/windows/1160/, retrieved 19 April 2018 
  19. ↑ Haavard (31 May 2010), "Opera 10.60 Alpha 1: Speed, eye-candy, and bug fixing", Opera, http://my.opera.com/desktopteam/blog/2010/05/31/opera-10-60-alpha-1 
  20. ↑ Hunt, Lachlan (22 May 2008), "Selectors API", Opera, http://my.opera.com/core/blog/selectors-api 
  21. ↑ 21.0 21.1 Dixit, Shwetank (16 December 2009), "Opera 10.5 Pre-Alpha build released: the new additions", Opera, http://my.opera.com/ODIN/blog/opera-10-5-pre-alpha-build-released-here-is-whats-new 
  22. ↑ "W3C File API support in Opera Presto 2.8", Opera, http://www.opera.com/docs/specs/presto28/file/ 
  23. ↑ Web specifications support in Opera Presto 2.10, Opera Software ASA, 13 October 2011, http://www.opera.com/docs/specs/presto2.10/#m210-261 
  24. ↑ Bersvendsen, Arve (1 September 2006), "Event Streaming to Web Browsers", Opera, http://my.opera.com/WebApplications/blog/show.dml/438711 
  25. ↑ van Kesteren, Anne (11 October 2010). "The long journey of Server-Sent Events (EventSource)". Opera. http://my.opera.com/core/blog/eventsource. 
  26. ↑ Pieters, Simon (11 October 2010). "WebSockets in Opera". Opera. http://my.opera.com/core/blog/websockets. 
  27. ↑ van Kesteren, Anne (8 December 2010). "Disabling the WebSocket protocol". http://annevankesteren.nl/2010/12/websocket-protocol-vulnerability. 
  28. ↑ "Web specifications support in Opera Presto 2.11". Opera Software ASA. http://www.opera.com/docs/specs/presto2.11/#m211-337. 
  29. ↑ Nilsen, Petter (5 February 2010), "Skin fixes, Unite, and then some", Opera, http://my.opera.com/desktopteam/blog/2010/02/05/skin-fixes-unite-and-then-some 
  30. ↑ "Web specifications supported in Opera Presto 2.5", Opera, http://www.opera.com/docs/specs/presto25/, retrieved 19 April 2018 
  31. ↑ Pieters, Simon (1 March 2010), "Everything you need to know about HTML5 video and audio", Opera, http://dev.opera.com/articles/view/everything-you-need-to-know-about-html5-video-and-audio/ 
  32. ↑ Jägenstedt, Philip (3 December 2009), "(re-)Introducing <video>", Opera, http://my.opera.com/core/blog/2009/12/31/re-introducing-video 
  33. ↑ Lie, Håkon Wium (1 May 2010), "Welcome, WebM <video>!", Opera, http://labs.opera.com/news/2010/05/19/ 
  34. ↑ Mills, Chris (1 May 2010), "Opera supports the WebM video format", Opera, http://dev.opera.com/articles/view/opera-supports-webm-video/ 
  35. ↑ Kleinhout, Huib (1 July 2010), "Opera 10.60 goes final", Opera, http://my.opera.com/desktopteam/blog/2010/07/01/opera-10-60-goes-final 
  36. ↑ Opera Desktop Team Blog, http://my.opera.com/desktopteam/blog/2011/10/13/introducing-opera-12-alpha 
  37. ↑ Opera 9 canvas support, http://www.opera.com/docs/specs/opera9/canvas/, retrieved 19 April 2018 
  38. ↑ Opera 9.5 canvas support, http://www.opera.com/docs/specs/opera95/canvas/, retrieved 19 April 2018 
  39. ↑ Presto 2.1.1 canvas support table, http://www.opera.com/docs/specs/presto211/canvas/, retrieved 19 April 2018 
  40. ↑ Presto 2.5 canvas support table, http://www.opera.com/docs/specs/presto25/canvas/, retrieved 19 April 2018 
  41. ↑ Presto 2.6 canvas support table, http://www.opera.com/docs/specs/presto26/canvas/, retrieved 19 April 2018 
  42. ↑ Web specifications support in Opera Presto 2.7 – Core Milestone additions since Opera Presto 2.6, http://www.opera.com/docs/specs/presto27/#changes, retrieved 19 April 2018 




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