IE11 dev channel source map support for all document modes

Fixed Issue #394075


Jun 25, 2014
This issue is public.
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Steps to reproduce


Repro Steps:

  1. Open IE11 developer channel

  2. Go to

  3. Open F12 tools

  4. Go to debugger -> open document (ctrl+o) and expand the “Dynamic scripts” folder
    => You’ll see all the source files of the page and can identify them by their name

  5. In F12 go to Emulation and set the document mode to 10

  6. Go back to debugger -> open document -> expand dynamic scripts
    => The sources are now longer identifiable by their name as the source map information is no longer evaluated.

Expected Results:

Working source map evaluation, independent from document mode/emulation settings. This would enable us to work/debug with the latest IE only, even if a bug is only present in an earlier IE release.

Actual Results:

Dev Channel specific:



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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Tony S.”

      Changed Title from “IE11 dev channel source map support for all document modes” to “IE11 dev channel source map support for all document modes”

      Changed Assigned To to “Ben K.”

      Changed Assigned To from “Ben K.” to “Paul V.”

      Changed Status to “Confirmed”

      Changed Assigned To to “Martyn L.”

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

      Changed Status from “Confirmed” to “Fixed”

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