IE 11: Error while sending Multipart Form Data request: Stream ended unexpectedly

Question

I am trying to upload files along with some other form fields using jQuery AJAX calls.

This is a common function that calls the URL on the server:

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Answer 1

The issue you have mentioned has troubled me for a long time. I finally have a solution to the issue. IE appends an empty name form data at the end of the formData request object which gets parsed at the server and hence the error occurs.

Below was the form data request object which was sent before the fix:

-----------------------------7e3195134f056c
Content-Disposition: form-data; name="csrfToken"

8394D82F5A776708F13CDC6D4B4DE1485C1EC05625E63B2E
-----------------------------7e3195134f056c
Content-Disposition: form-data; name="ACTION"

DELETE_LOGO
-----------------------------7e3195134f056c
Content-Disposition: form-data; name="ORG_ID"

1879048492
-----------------------------7e3195134f056c
Content-Disposition: form-data; name=" 
-----------------------------7e3195134f056c--

In order to resolve the issue, added an extra hidden field at the end of the form element.

The request body is now sent as below which is parsed successfully:

-----------------------------7e3195134f056c
Content-Disposition: form-data; name="csrfToken"

8394D82F5A776708F13CDC6D4B4DE1485C1EC05625E63B2E
-----------------------------7e3195134f056c
Content-Disposition: form-data; name="ACTION"

DELETE_LOGO
-----------------------------7e3195134f056c
Content-Disposition: form-data; name="ORG_ID"

1879048492
-----------------------------7e3195134f056c
Content-Disposition: form-data; name="dummyIEField"


-----------------------------7e3195134f056c--

Hope this helps. Cheers !!