1177039 - Missing text in iframe in specific circumstances when hardware acceleration is enabled

Status: RESOLVED DUPLICATE of bug 1153609

(Core :: Graphics, defect)

Description

[Rich]

Attachment: iframe_text.zip

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.52 Safari/537.36

Steps to reproduce:

Text is not visible inside a div with a border-radius and overflow hidden that's inside a body with a background colour inside an iframe with fixed positioning that's inside a body with an image as its background.  I've attached a zip containing outer.html that demonstrates the problem.  Disabling any of the individual CSS rules prevents the problem from occurring, as does disabling hardware acceleration and restarting the browser.


Actual results:

The text 'Hello World!' is not visible in the iframe - it appears to be completely empty.


Expected results:

The text 'Hello World!' should be visible within the iframe, as it is with all other browsers, or with hardware acceleration disabled or with any other mainstream browser.

Comment 1

[Alice0775 White]

[Tracking Requested - why for this release]: Regression since Firefox37

Setting gfx.direct2d.use1_1 = false fixes the problem

Comment 2

[Alice0775 White]

Bug 1153609 fixed this in Aurora40.0a2 and Nightly41.0a1.

Comment 3

[Liz Henry (:lizzard) (relman/hg->git project)]

Rich, thanks for the testcase, maybe that will help the graphics team. But,  39 is already in its final build before release next week.  I believe we already have built the ESR release as well.  

This may be a duplicate of bug 1153609 but I'll leave that for the graphics team to make sure of.

Comment 4

[Liz Henry (:lizzard) (relman/hg->git project)]

Bas what do you think? Duplicate or not? Thanks.

Comment 5

[Milan Sreckovic [:milan] (needinfo for best results)]

Heh, mid-air collision with the same ni and question :)

Comment 6

[Bas Schouten (:bas.schouten)]

Certainly looks like a dupe.

Comment 7

[Ritu Kothari (:ritu) (Inactive, please n-i to RyanVM, jcristau, or pascal)]

No need to track this as it's a duplicate and the other bug has been nominated for esr-tracking.