Blur on "Warn" filters doesn't always blur well.

[jetpacktuxedo]

Describe the bug
When a blurred post is near the bottom of the screen some of the blur is lifted and you can see the content underneath the warning

To Reproduce

Steps to reproduce the behavior:

1. Find a post with warned content
2. scroll that content partially off-screen
3. observe that the blur fades away towards the window border allowing you to see underneath it
4. stop looking at Fuck Alf

Expected behavior

Blur should remain constant even as the content is being scrolled off-screen

Screenshots

Fully blurred as Fuck Alf is far enough from the window border to remain fully blurred

Smaller window size with the window scrolled so that the image touches but does not pass the screen edge, image remains fully blurred

Fuck Alf's hand, knee, and chest pretty plainly visible through the blur as the image is scrolled off screen

Details

• Platform: windows firefox
• Platform version: windows 10, firefox 114.0.1
• App version: Build version: 1.31.0; Platform: web

Additional context

I carefully aligned my screenshot such that I didn't drop Alf hog in my bug report.

[KevSlashNull]

Just encountered this too (unfortunately D:). Seems to be a Firefox-only bug, since this doesn’t happen in the app or in Chromium. I’m on FF109.09b, Ubuntu 22.04.2, Build version: 1.33.0; Platform: web.

The backdrop-filter seems to be borked in this exact use case in FF for now. There are multiple backdrop-filter in Bugzilla and one particularly similar issue.

As an alternative, using filter: blur(100px) on the image directly instead of an overlay works fine but it also darkens the image quite a lot. (The post used below for demo, contains nudity.)

backdrop-filter: blur on overlay	filter: blur on the image

[pfrazee]

Yeah I've been having discussions with folks about this and I think we need to move away from the image blur, for two reasons:

1. When folks are in public it's very eye-catching and makes the whole thing feel more risqué.
2. The sizing behaviors of this are not great, it uses a lot of space and it could be better.

As fun as this is, I think we should just move to a simple opaque card.

[pfrazee]

Marking as "wontfix" but the more accurate answer is we're replacing this behavior