Fix external scroll offset handling for perspective elements.

VERIFIED FIXED in Firefox 68

Status

()

defect
VERIFIED FIXED
3 months ago
2 months ago

People

(Reporter: gw, Assigned: gw)

Tracking

unspecified
mozilla68
Points:
---
Dependency tree / graph

Firefox Tracking Flags

(firefox68 verified)

Details

Attachments

(1 attachment)

No description provided.
Blocks: 1546085
Blocks: 1546068

External scroll offsets are not propagated across reference frames.

When a perspective element scrolls relative to an ancestor scroll
frame, remove the effect of any external scroll offset during that
offset calculation.

Assignee: nobody → gwatson
Pushed by gwatson@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/cf05b09d3f3a
Fix external scroll offset handling for perspective elements. r=emilio
Status: NEW → RESOLVED
Closed: 3 months ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla68

I need some steps to reproduce/verify as I've been asked to verify this fix. Can you give me some detailed manual steps? Thanks.

Flags: needinfo?(gwatson)

I think the best way to verify this would be to ensure WebRender is enabled, and confirm that https://bugzilla.mozilla.org/show_bug.cgi?id=1546068 and https://bugzilla.mozilla.org/show_bug.cgi?id=1546085 are drawing correctly. When this bug is present, those sites have very noticeable drawing issues. I'm not sure of any other pages that demonstrate the issue.

Flags: needinfo?(gwatson)

Considering that the issues mentioned above are not fixed or no longer occurring, I will consider this one fixed as well. Thanks.

Status: RESOLVED → VERIFIED
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