Cannot collapse a warning dialog on WHATWG PR previews

Needs root cause Issue #12101256 • Assigned to Scott L.


Kagami R.
May 23, 2017
This issue is public.
Found in
  • Microsoft Edge
Found in build #
Needs root cause
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Reported by 1 person

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Steps to reproduce

  1. Access (Got this from
  2. Click “collapse”

Expected: The dialog should be collapse as it is on Firefox and Chrome

Actual: No collapsing


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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “James M.”

      Changed Assigned To to “Scott L.”

      Changed Status to “Needs root cause”

    • This seems because of the lack of details element support on Edge. Try the demo here:

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