Compatibility/Telemetry: Difference between revisions

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(→‎Measuring web compatibility: move requestFullscreen to DOM)
(→‎HTTP: adding bug wap.)
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==== HTTP ====
==== HTTP ====
* WAP (WML or XHTMLMP) content sent to Fennec and Firefox OS users (see [https://bugzilla.mozilla.org/show_bug.cgi?id=941241 Bug 941241])
* WAP (WML or XHTMLMP) content sent to Fennec and Firefox OS users (see [https://bugzilla.mozilla.org/show_bug.cgi?id=941241 Bug 941241] and see also [https://bugzilla.mozilla.org/show_bug.cgi?id=997668 bug 997668])
* `Server:` name
* `Server:` name
* Redirection sequences
* Redirection sequences

Revision as of 07:57, 23 December 2014

Measuring web compatibility

This page tracks the telemetry measurements that the Web Compat team is tracking. See Telemetry for more information.

Bug 1109958 will serve as the meta tracking bug for all telemetry probes.

Possible telemetry probes

CSS

  • `display: table` with `max-width: 100%` on children.

HTTP

  • WAP (WML or XHTMLMP) content sent to Fennec and Firefox OS users (see Bug 941241 and see also bug 997668)
  • `Server:` name
  • Redirection sequences
  • Wrong mimetypes for images
  • Wrong mimetypes for JSON

JS/DOM


Video

  • Ads before video and transition to video
  • EME required
  • List of video providers (stats for understanding if we need to focus our contacts actions toward some specific people)
  • List of JS libraries used for video players
  • Flash-only video (perhaps already covered in 1108668)
  • Media formats (ogg, mp4, h264, m3u8/HLS)
  • Media MIME types
    • HTMLMediaElement.canPlayType()
    • MediaSource.isSupportedType()
    • MediaSource.addSourceBuffer(DOMString type)
  • Video dimensions
  • Compressed video sample sizes
  • Frame drops
  • Hardware or software decoders
  • Playing videos concurrently
  • Audio speaker configuration e.g. mono, stereo, 5.1
  • H264
Related information

h264 rec: http://www.itu.int/rec/T-REC-H.264-201402-I/en