855455 - enable @supports rule in all builds

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect, P3)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Currently @supports rules are enabled for nightly/aurora versions but not for beta/release versions.  Given that the spec is going to CR very soon (and should be by the time current nightly gets to beta), we should enable it for all builds so that we ship it.

I don't see any known issues that should block us from doing this.  (I don't see any valid issues remaining in bug 780060 or bug 816045.)

But I probably ought to check the current test suite submissions.

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: Turn on @supports in release builds.

Comment 2

[Cameron McCormack (:heycam)]

Comment on attachment 730335 [details] [diff] [review]
Turn on @supports in release builds.

r=me if you're happy with how we fare on any @supports tests we haven't yet imported from the official test suite.

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

https://hg.mozilla.org/integration/mozilla-inbound/rev/b2f950261473

I still need to go through the tests, though.

Comment 4

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/b2f950261473

Comment 5

[sjw]

Could someone update the realese notes?
https://www.mozilla.org/en-US/firefox/22.0beta/releasenotes/

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I don't think this belongs in the release notes, but it does belong in developer documentation.

Comment 7

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

In Opera's tests, we fail at-supports-014, which is incorrect as described here (with patch):
http://lists.w3.org/Archives/Public/public-css-testsuite/2013May/0019.html

and we fail 4 items in contributors/opera/submitted/css3-conditional/js/001.html .  I again think the test is invalid, as described here:
http://lists.w3.org/Archives/Public/public-css-testsuite/2013May/0020.html

Comment 8

[Jean-Yves Perrier [:teoli]]

Updated:
https://developer.mozilla.org/en-US/docs/Web/API/CSS.supports
https://developer.mozilla.org/en-US/docs/Web/API/CSS
https://developer.mozilla.org/en-US/docs/Web/CSS/@supports
and 
https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/22 (on by default)