Closed Bug 1706142 Opened 3 years ago Closed 3 years ago

Blur filter (CSS blur and SVG feGaussianBlur) is clipped to viewport when ancestor or self has CSS position fixed

Categories

(Core :: Graphics: WebRender, defect)

Firefox 86
defect

Tracking

()

RESOLVED DUPLICATE of bug 1661147

People

(Reporter: frw700, Unassigned)

References

(Regression)

Details

(Keywords: regression)

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(1 file)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36 Edg/89.0.774.76

Steps to reproduce:

Have a div with green background, a blur filter and CSS position:fixed
Translate the div partially out of viewport.

Actual results:

Blur filter is clipped to viewport.

Expected results:

Blur filter is not clipped to viewport.

The bug occurs (atleast) in Firefox for Windows 10 and Android 9.
Works correctly in Chrome 90 and EdgeHTML (UWP).
This is a regression, and mozregression bisect found this from around 2020-05-25:
Bug 1637953 - Fix picture caching with redundant nested scroll roots r=Bert,jrmuizel

This might be a dupe of Bug 1661147

The Bugbug bot thinks this bug should belong to the 'Core::SVG' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Component: Untriaged → SVG
Product: Firefox → Core
Status: UNCONFIRMED → NEW
Ever confirmed: true
Has Regression Range: --- → yes

Thanks Alice!

Component: SVG → Graphics: WebRender

Ah, this seems bug 1661147...

Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → DUPLICATE
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