Editable content (editableContent=true) is tremendously laggy for IE9 and later

Not reproducible Issue #651404

Details

Created
Jul 28, 2014
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This issue is public.
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Steps to reproduce

URL:

Repro Steps:

Move the caret to the end of the document (if not there) and start typing or just moving the cursor.

To repro:
http://nozillium.com/test/bad-edit-ie-edge.html

Desired behavior (IE8 mode):
http://nozillium.com/test/bad-edit-ie8.html

Expected Results:

In IE8 mode (<meta http-equiv="X-UA-Compatible" content="IE=8">), the typing experience is just normal.

Actual Results:

Dev Channel specific:

No

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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Rico M.”

      Changed Status to “Confirmed”

      Changed Status from “Confirmed” to “Won’t fix”

      Changed Assigned To to “Knight L.”

      Changed Status from “Won’t fix”

      Changed Status to “In progress”

      Changed Assigned To from “Knight L.” to “IE F.”

      Changed Status from “In progress” to “Not reproducible”

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