event.dataTransfer.files[0].type returns empty string on images, should be image/*

Confirmed Issue #109124 • Assigned to Kris K.


Apr 27, 2014
This issue is public.
Found in build #
Reported by 0 people

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Steps to reproduce



Repro Steps:

Can be tested on this website: http://msdn.microsoft.com/en-us/library/ie/hh580307(v=vs.85).aspx
Use example two.
Behaviour detected on IE10 (Win7 x64) and IE11 (Edge) (Win7 x64).

Occurs on
Blob (dataTransfer) property type --> returns the MIME type of a file.

Expected Results:

Images are quite common, so expected behaviour should be to return the correct MIME-type image/jpeg for an *.jpg for instance.
Firefox and Chrome both do this.

Actual Results:


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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Mara P.”

      Changed Assigned To to “Rico M.”

      Changed Assigned To from “Rico M.” to “Rafael C.”

      Changed Status to “Confirmed”

      Changed Assigned To from “Rafael C.” to “IPBS P.”

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

      Changed Assigned To from “IPBS P.” to “Mike D.”

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

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

      Changed Assigned To to “Kris K.”

      Changed Status from “Won’t fix”

      Changed Status to “Confirmed”

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