MutationObserver returns incorrect MutationRecord.oldValue when attribute removed

Issue #7711883 • Assigned to Travis L.

Details

Author
Ben G.
Created
May 27, 2016
Privacy
This issue is public.
Found in
  • Microsoft Edge
  • Internet Explorer
Found in build #
14.14342
Reports
Reported by 1 person

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Steps to reproduce

The MutationRecord oldValue comes through as null in Edge when attribute is removed via removeAttribute. Expected value is “” for the example below.

http://jsbin.com/nirofo

Works as expected on Chrome and Firefox.

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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Ibrahim O.”

      Changed Assigned To to “Travis L.”

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