CSS Filter: blur

Not reproducible Issue #8016901


Mark v.
Jun 28, 2016
This issue is public.
Reported by 5 people

Sign in to watch or report this issue.

Steps to reproduce

Use the following CSS on a website:

-webkit-filter: blur(0px);
-moz-filter: blur(0px);

This creates a really messy bug on the website. As shown in the picture in the attachments.

I’ve seen this multiple times now, and I’ve seen this issue being reported to you guys at least 6 months ago.

The issue is still not resolved. So this could be seen as a reminder. The issue is still present and needs to be fixed.


Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “Brad E.”

  • What is progress on this?

    This bug was reported in the January here: https://connect.microsoft.com/IE/feedback/details/2255767/edge-blurring-background and in several other places yet all issues was closed and nothing seems to change (the last one with wrong link)

    Please deal with it!

  • Some remarks/observations:

    1. When this bug occurs, the visual artifacts may even affect sibling windows not related to Edge (even if the sibling window belongs to a Classic desktop app that uses only legacy GDI for drawing).
      So, the bug is likely to be in the system composition engine itself.
    2. The bug reproduces with video drivers from different vendors (Intel, AMD).
    3. The bug does not reproduce if there is no hardware accelerated composition available (e.g. in a HyperV VM it only reproduces if RemoteFX display adapter is added to the VM).

    However, unfortunately, Microsoft Edge does not have a switch to disable HW composition (as a workaround for this issue).

  • Also, the issue is not present when taking a screenshot (that’s why the attachment is a photo of the physical screen).
    So, the visual tree of the system compositor is actually correct, but there is a bug in the Compositor when translating this visual tree to actual GPU/Direct3D calls.

  • This problem should be fixed within the Anniversary update. Can you please confirm or deny this so we can close or re-investigate as necessary?

  • Microsoft Edge Team

    Changed Status to “Not reproducible”

  • not fixed as of Edge/13.10586


    it doesn’t always repro. the easiest way i have found is to have multiple overlapping Edge windows open. once the bug triggers, it even appears above windows from other apps (see screenshot: http://codewithoutborders.com/posted/iebug.jpg)

    i’m using intel HD graphics 4000, driver version (8/17/2015)

  • That version is not the anniversary update nor the current stable build.  Please see this link for more details:


    14/14393 is the current public stable branch. Update to that and then re-run the tests.  Not repro on my end, using 14911.1000

You need to sign in to your Microsoft account to add a comment.

Sign in