Extremely slow scroll performace in tables with cell-clipping

Not reproducible Issue #840477


Sep 16, 2014
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Steps to reproduce


Repro Steps:

  1. Load the attached file
  2. Click on the scroll bar about 1\4 from the bottom of the bar
    • IE will start to scroll but IE will have little pauses (250-500ms)
  3. Do the same test in Chrome
    • Chrome is smooth and dooesn’t show the pauses

Load the benchmark page “test-table-scroll-static.html” attached below, scroll one of the two displayed tables on the page.

Compare the scrolling user experience with other browsers mentioned above.

Expected Results:

When dragging a scroll bar of a div in a page with the structure described above, the user should experience a smooth scrolling of the table content.

With IE 11, the frame rate during scrolling degrades 1-3 frames per second, caused by a single rendering step during scrolling takes 500ms up to more than a second.

The very same page renders well in recent FireFox, Crome, Opera and Safari browsers. Even IE 11 in IE 7 emulation mode allows smooth scrolling.

Actual Results:

Dev Channel specific:


Dev Channel specific:


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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 Status from “Won’t fix” to “Not reproducible”

      Changed Steps to Reproduce

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