IE11 unable to interpret filename given in Content-Disposition http header

Won’t fix Issue #14886544


keng y.
Nov 30, 2017
This issue is public.
Found in
  • Internet Explorer
Reported by 1 person

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Steps to reproduce

HTTP/1.1 200 OK
Set-Cookie: skin="treeview"; Expires=Thu, 29-Nov-2018 22:31:03 PST; Path="/"; HttpOnly
Content-Disposition: attachment;filename*="utf-8’’Report2_smaller.XLSX"
Content-Type: application/octet-stream
Transfer-Encoding: chunked
Date: Thu, 30 Nov 2017 06:31:03 GMT
Server: web

IE11 does not correctly interpret the filename given in Content-Disposition and renders the filename as “DowloadFile”. The same was send to Firefox (57.0 64 bit) and Firefox was able to interpret the filename correctly as “Report2_smaller.XLSX”. I have checked the grammar for Content-Disposition against RFC 2616 and RFC 5987, and is valid.

Is this a bug in IE11?


1 attachment

Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “James M.”

  • Hello,

    Thank you for providing your feedback on IE11. We are not accepting feedback on Internet Explorer through this portal any longer (unless security related). We welcome any feedback you have on Microsoft Edge through this website.

    Best Wishes,
    The MS Edge Team

  • Microsoft Edge Team

    Changed Status to “Won’t fix”

  • So is there another platform for this or IE11 has reached end of support for non-security related issues?

  • Hello,

    Thank you for providing feedback. We do support IE 11 through our Microsoft Support service offering. (To open a support incident please visit ). We currently are accepting feedback for all MS Edge issues & IE 11 security only issues via the EdgeHTML issue tracker website. If you are experiencing an issue with IE 11 please open a support incident using the link provided and one of our support engineers will assist you.

    Best Wishes,
    The MS Edge Team

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