625409 - Element lost rgba transparency effect when position is fixed

Status: RESOLVED FIXED

(Core :: Graphics, defect)

Description

[Ricky Kung]

User-Agent:       Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b9) Gecko/20100101 Firefox/4.0b9
Build Identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b9) Gecko/20100101 Firefox/4.0b9

position: fixed; background: rgba(255,255,255,0.5);

no transparent effect

Reproducible: Always

Comment 1

[Ricky Kung]

Attachment: Test Case

Comment 2

[Ricky Kung]

Attachment: Comparison between firefox 4 and safari

Comment 3

[Boris Zbarsky [:bzbarsky]]

Disabling GL layers fixes.  This needs to block, imo.

Comment 4

[Joe Drew (not getting mail)]

Can someone get me a regression window?

Comment 5

[Boris Zbarsky [:bzbarsky]]

Regressed when GL layers were enabled.  Enabling them in a build from before they were enabled by default shows the problem too, going back to Sept 8, 2010 at least.  Before that, GL layers were unusable enough that I can't test.

Comment 6

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Attachment: fix

Comment 7

[Bas Schouten (:bas.schouten)]

Comment on attachment 504609 [details] [diff] [review]
fix

I'd prefer spacing around the * operator, other than that looks fine to me.

Comment 8

[Robert O'Callahan (:roc) (email my personal email if necessary)]

http://hg.mozilla.org/mozilla-central/rev/9163f9b80bce