snapping issue with buttons + shadows (was: CSS element appear broken)
Categories
(Core :: Graphics: WebRender, defect, P3)
Tracking
()
People
(Reporter: andreas, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(4 files, 1 obsolete file)
Screenshot_2019-08-15 Gordian Knot - WoW Draenor-EU Guild.png
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0
Steps to reproduce:
Just updated Firefox and since the 68 update website appears to have css related issues
Actual results:
CSS related issues, specifically on this website gordian-knot.eu on the header and element class btns the background and border appear to be broken. They appear properly in all other browsers.
Hi Andreas,
Thanks for your report.
I tried reproducing the issue reported on https://gordian-knot.eu/ using Firefox Release latest version 68.0.2 and Firefox Nightly latest version 70.0a1 (2019-08-20) but the mentioned website displays ok on my end. I'll be attaching a screenshot on my next message.
Can you please try to open the site using Firefox Nightly and share your results with us? You can download Nightly from here: https://nightly.mozilla.org/
If there is any other info you can provide to help us figure out how we can reproduce the issue (like a different site, test page or steps) please share them.
Regards,
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Comment 3•5 years ago
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Thanks a lot for the report; As Virginia, the site looks ok to me.
I'm happy to investigate if there are concrete steps to reproduce though. Any extension installed? Need to be logged-in? Any window size? Any URL in particular?
Otherwise you could try to run https://mozilla.github.io/mozregression/ to figure out what change it actually broke the site.
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Comment 4•5 years ago
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(In reply to Virginia Balducci from comment #1)
Hi Andreas,
Thanks for your report.
I tried reproducing the issue reported on https://gordian-knot.eu/ using Firefox Release latest version 68.0.2 and Firefox Nightly latest version 70.0a1 (2019-08-20) but the mentioned website displays ok on my end. I'll be attaching a screenshot on my next message.Can you please try to open the site using Firefox Nightly and share your results with us? You can download Nightly from here: https://nightly.mozilla.org/
If there is any other info you can provide to help us figure out how we can reproduce the issue (like a different site, test page or steps) please share them.
Regards,
Hello.
You have to login to reproduce probably. Use Test as ID and trooper1979!@# as password. Thank you
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Comment 5•5 years ago
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Comment 6•5 years ago
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Can you attach your about:support? I see some white seams around the corners in the test-case in comment 5. Do you see something similar to your screenshots?
Also, does the Compositing section of your about:support say WebRender by any chance? I only seem to reproduce this with WebRender enabled.
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Updated•5 years ago
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Comment 7•5 years ago
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How do I attach the about:support? I opened it but it's a huge wall of text. Should I save it in a txt and upload it or something else?
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Comment 8•5 years ago
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Also the issue is the same in the new version 69.0
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Comment 9•5 years ago
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Comment 10•5 years ago
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You seem to have attached the about:support from safe mode, is that intentional?
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Comment 11•5 years ago
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By mistake. Here's the proper one.
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Comment 12•5 years ago
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Comment 13•5 years ago
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Yeah, so when you hit the issue you're using WebRender. Can you confirm that on safe mode or if you toggle gfx.webrender.force-disabled to true in about:config the problem goes away, and that you see the problem with attachment 9086848 [details]?
This seems to be a WebRender snapping issue. The good thing is that there's work ongoing to fix these (bug 1574493).
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Comment 14•5 years ago
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The component has been changed since the backlog priority was decided, so we're resetting it.
For more information, please visit auto_nag documentation.
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Comment 15•5 years ago
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Bug 1574493 makes the borders more subtle and closer to Chrome/non-WebRender Firefox, but I'm not sure if it fixes it completely. It should hopefully land this week and we can reevaluate.
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Updated•5 years ago
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Comment 16•5 years ago
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I think the effects reported are resolved by bug 1574493. It renders slightly differently from Chrome but no longer has the stark white corners. Andreas, can you confirm that on nightly in builds 20190914212452 or later that this is resolved? Thanks!
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Comment 17•5 years ago
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Yes. Latest nihgtly fixed the issue but I have to say that in chrome still looks more neat. I do not remember how it was in the past though. (older versions)
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Comment 18•4 years ago
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We have landed a few more fixes that seemed to have improved things. I would say at this point the rendering differences between Chrome and Firefox for me depend on the zoom/device pixel scale details. We are closer with WebRender than basic compositor is today. There are also zooms for me (200% display scaling on Linux, 67% Chrome zoom) where Chrome is much worse than us at any zoom (solid white bars on some vertical sides of the boxes), whereas WebRender is now very consistent.
Description
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