Content-Disposition with '%20' in the file name and without file extension is not getting decoded in IE

Duplicate Issue #11791779 • See Issue #11779136


Karuppiah S.
Apr 26, 2017
This issue is public.
Found in
  • Microsoft Edge
See progress on Bug #11779136
Found in build #
Reported by 1 person

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Steps to reproduce

In our application we are using file download. And in one of the case we are not giving the file extension and only the file name is being given.

And the filename will be having the spaces. Before it gets assigned to the Content-Disposition response header we are encoding those spaces by ‘%20’ as per the recommended ‘UTF-8’ encoding.

Eg: Content-Disposition attachment; filename="Additional%20material%20received%20from%20Correspondent"

The downloaded file also having the file name with ‘%20’ and not spaces.

But the same thing is working fine if we have the extension.

Eg: Content-Disposition attachment; filename="Additional%20material%20received%20from%20Correspondent1.msg"

This is working fine in other browsers. Kindly review the issue and fix it in IE.



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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “James M.”

      Changed Status to “Duplicate”

    • Hello,

      Thank you for providing this information about the issue. We are already addressing your report in case 11779136. We will continue to update you there.

      Best Wishes,

      The MS Edge Team

    • This bug has marked as duplicate. Please follow the parent issue to get new updates.

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