我注意到顿悟是树莓派的原生网络浏览器。文档提到顿悟对 html5 有更好的支持。但我无法在任何地方找到顿悟支持的所有 html5 功能。特别是 websocket 支持。似乎计划在 2015 年 3 月发布新版本。但没有关于 html5 支持的文档。我知道顿悟是建立在 webkit gtk 模块上的，但是这种方式也缺乏文档。
谁能告诉我在哪里可以找到顿悟支持的所有 html5 功能的文档？（尤其是 websocket）
谢谢
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Raspberry pi 2 B with noobs, epiphany browser July 2015
HTML5TEST
how well does your browser support html5?
YOUR BROWSER SCORES 344 OUT OF 555 POINTS
semantics
Parsing rules 5
<!DOCTYPE html> triggers standards mode Yes ✔
HTML5 tokenizer Yes ✔
HTML5 tree building Yes ✔
HTML5 defines rules for embedding SVG and MathML inside a regular HTML document. The following tests only check if the browser is following the HTML5 parsing rules for inline SVG and MathML, not if the browser can actually understand and render it.
Parsing inline SVG Yes ✔
Parsing inline MathML Yes ✔
Elements 24/30
Embedding custom non-visible data Yes ✔
New or modified elements
Section elements Yes ✔
Grouping content elements Yes ✔
Text-level semantic elements Partial ○
Interactive elements Partial ○
Global attributes or methods
hidden attribute Yes ✔
Dynamic markup insertion Yes ✔
Forms 47/75
Field types
input type=text Yes ✔
input type=search Yes ✔
input type=tel Yes ✔
input type=url Yes ✔
input type=email Yes ✔
input type=date No ✘
input type=month No ✘
input type=week No ✘
input type=time No ✘
input type=datetime No ✘
input type=datetime-local No ✘
input type=number Yes ✔
input type=range Yes ✔
input type=color No ✘
input type=checkbox Yes ✔
input type=image Yes ✔
input type=file Yes ✔
textarea Yes ✔
select Yes ✔
fieldset Yes ✔
datalist No ✘
keygen Yes ✔
output Yes ✔
progress Yes ✔
meter Yes ✔
Fields
Field validation Yes ✔
Association of controls and forms Yes ✔
Other attributes Yes ✔
CSS selectors Yes ✔
Events Yes ✔
Forms
Form validation Yes ✔
Microdata 0
Microdata No ✘
device access
Location and Orientation 15/20
Geolocation Yes ✔
Device Orientation No ✘
Device Motion No ✘
Output 5/10
Full screen support Prefixed ✔
Web Notifications No ✘
Input 0/25
Access the webcam No ✘
Gamepad control No ✘
Pointer Events No ✘
Pointer Lock support No ✘
connectivity
Communication 33/35
Server-Sent Events Yes ✔
Beacon No ✘
XMLHttpRequest Level 2
Upload files Yes ✔
Response type support Yes ✔
WebSocket
Basic socket communication Yes ✔
ArrayBuffer and Blob support Yes ✔
Peer To Peer 0/20
WebRTC 1.0 No ✘
ObjectRTC API for WebRTC No ✘
Data channel No ✘
performance & integration
User interaction 13/20
Drag and drop
Attributes Yes ✔
Events Yes ✔
HTML editing
Editing elements Yes ✔
Editing documents Yes ✔
CSS selectors No ✘
APIs Yes ✔
Clipboard
Clipboard API and events No ✘
Spellcheck
spellcheck attribute Yes ✔
Performance 25
Native binary data Yes ✔
Workers
Web Workers Yes ✔
Shared Workers Yes ✔
Security 33/40
Web Cryptography API No ✘
Content Security Policy 1.0 Yes ✔
Content Security Policy 1.1 No ✘
Cross-Origin Resource Sharing Yes ✔
Cross-document messaging Yes ✔
Iframes
Sandboxed iframe Yes ✔
Seamless iframe Yes ✔
iframe with inline contents Yes ✔
History and navigation 10
Session history Yes ✔
multimedia
Video 21/35
video element Yes ✔
Subtitles No ✘
Audio track selection No ✘
Video track selection No ✘
Poster images Yes ✔
Codec detection Yes ✔
Advanced
DRM support No ✘
Media Source extensions No ✘
Codecs
MPEG-4 ASP support Yes ✔
H.264 support Yes ✔
Ogg Theora support Yes ✔
WebM with VP8 support Yes ✔
WebM with VP9 support Yes ✔
Audio 25/30
audio element Yes ✔
Loop audio Yes ✔
Preload in the background Yes ✔
Advanced
Web Audio API Prefixed ✔
Speech Recognition No ✘
Speech Synthesis No ✘
Codecs
PCM audio support Yes ✔
AAC support Yes ✔
MP3 support Yes ✔
Ogg Vorbis support Yes ✔
Ogg Opus support Yes ✔
WebM with Vorbis support Yes ✔
WebM with Opus support Yes ✔
3d, graphics & effects
Responsive images 5/15
picture element No ✘
srcset attribute Yes ✔
sizes attribute No ✘
2D Graphics 19/25
Canvas 2D graphics Yes ✔
Drawing primitives
Text support Yes ✔
Path support No ✘
Ellipse support No ✘
Dashed line support Yes ✔
System focus ring support No ✘
Features
Hit testing support No ✘
Blending modes Yes ✔
Image export formats
PNG support Yes ✔
JPEG support Yes ✔
JPEG-XR support No ✘
WebP support No ✘
3D Graphics 0/20
WebGL 3D graphics No ✘
Animation 5
window.requestAnimationFrame Yes ✔
offline & storage
Web applications 10/25
Offline resources
Application Cache Yes ✔
Service Workers No ✘
Content and Scheme handlers
Custom scheme handlers No ✘
Custom content handlers No ✘
Custom search providers No ✘
Storage 15/35
Key-value storage
Session Storage Yes ✔
Local Storage Yes ✔
Database storage
IndexedDB No ✘
Objectstore Blob support No ✘
Objectstore ArrayBuffer support No ✘
The Web SQL Database specification is no longer being updated and has been replaced by IndexedDB. Because at least 3 vendors have shipped implementations of this specification we still include it in this test.
Web SQL Database Yes ✔
Files 15
Reading files
Basic support for reading files Yes ✔
Create a Blob from a file Yes ✔
Create a Data URL from a Blob Yes ✔
Create an ArrayBuffer from a Blob Yes ✔
Create a Blob URL from a Blob Yes ✔
Accessing the file system
FileSystem API No ✘
The Directories and System API proposal has failed to gain traction among browser vendors and is only supported in some Webkit based browsers. No additional points are awarded for supporting this API.
File API: Directories and System No ✘
Streams 0/5
Readable streams No ✘
Writable streams No ✘
other
Web Components 2/10
Custom elements No ✘
Shadow DOM No ✘
HTML templates Yes ✔
HTML imports No ✘
Other 17/20
Styling
Scoped style element No ✘
Scripts
Asynchronous script execution Yes ✔
Runtime script error reporting Yes ✔
Script execution events No ✘
Base64 encoding and decoding Yes ✔
JSON encoding and decoding Yes ✔
URL API Yes ✔
Mutation Observer Yes ✔
Promises Yes ✔
Other
Page Visibility Yes ✔
Text selection Yes ✔
Scroll into view Yes ✔
于 2015-07-16T18:10:45.350 回答