Closed Bug 1233590 Opened 4 years ago Closed 4 years ago

[non-e10s] Fixed Background Images show incorrectly Behind Rounded Object


(Core :: Graphics: Layers, defect)

43 Branch
Not set



Tracking Status
e10s - ---
firefox42 --- unaffected
firefox43 --- wontfix
firefox44 + wontfix
firefox45 + fixed
firefox46 + fixed
firefox-esr38 --- unaffected


(Reporter: mozilla, Assigned: botond)



(Keywords: regression, site-compat, testcase, Whiteboard: gfx-noted)


(3 files)

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20151208100201

Steps to reproduce:

Assign background image to body of website using CSS.
Create DIV with rounded corners in front of background.

See this site:

Actual results:

Background is not drawn around rounded corners if it is assigned a "fixed" position.

Expected results:

Background should be drawn correctly.
Component: Untriaged → Layout: Images
Product: Firefox → Core
Component: Layout: Images → Layout: View Rendering
I can reproduce on Nightly46.0a1 with *DISABLED* e10s. 
(It have been fixed by Bug 1208438 in case of enabled e10s.)

Regression window.

Regressed by: Bug 1166301
Blocks: 1166301
Ever confirmed: true
Flags: needinfo?(botond)
Keywords: regression
Summary: Fixed Background Images show incorrectly Behind Rounded Object → [non-e10s] Fixed Background Images show incorrectly Behind Rounded Object
Attached file reduced testcase
Attached file testcase
Keywords: testcase
Component: Layout: View Rendering → Graphics: Layers
See Also: → 1232939
Interestingly, I can't reproduce the issue on any of the testcases in this bug, but I _can_ reproduce it on the reduced testcase in bug 1232939, which appears to be the same or a very similar issue.
Doc posted for Bug 1232939.
Keywords: dev-doc-needed
Whiteboard: gfx-noted
Tracking as this is a recent regression (from 43).
Once we have a fix for bug 1232939, we can test against this bug.
Assignee: nobody → botond
The testcase I ended up adding to the test suite for bug 1232939 is based on the "reduced testcase" in this bug. I believe they are the same issue.
Flags: needinfo?(botond)
No longer reproduced the problem with attachment 8699869 [details] and attachment 8699871 [details] both.

Fixed range:
Closed: 4 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1232939
Thanks for testing!
Marking fixed for 45 and 46 based on bug 1232939.
Wontfix for 44 since its duplicate bug is also wontfixed.
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