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[fxtf-drafts] [filter-effects] What should happen if filter and background-attachment fixed; applied to the same element?

From: Dirk Schulze via GitHub <sysbot+gh@w3.org>
Date: Thu, 28 Dec 2017 11:21:17 +0000
To: public-fxtf-archive@w3.org
Message-ID: <issues.opened-284895050-1514460076-sysbot+gh@w3.org>
dirkschulze has just created a new issue for https://github.com/w3c/fxtf-drafts:

== [filter-effects] What should happen if filter and background-attachment fixed; applied to the same element? ==
Reported by Roland Soos (https://www.w3.org/Bugs/Public/show_bug.cgi?id=30199):

I have an example where I use `background-attachement: fixed;` and `filter: blur(15px);` on the same element. Currently all browser I tested does the same. Applies blur only to the visible area of the fixed image, which I think is bad as filter should apply to the whole element. You can see the result on this example: https://smartslider3.com/bugs/firefox/blurfixed/test.html

When you scroll down, you should see that a `box-shadow` like effect follows the visible rectangle of the image. I think that effect should stay on the whole div and when you scroll down, it should be visible at the top and at the bottom of the real image only.

Please view or discuss this issue at https://github.com/w3c/fxtf-drafts/issues/238 using your GitHub account
Received on Thursday, 28 December 2017 11:21:19 UTC

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