File upload using jquery ajax - IE 11 issue

Question

5.00/5 (1 vote)

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Dear all,

Environment:
ASP.Net web application - windows authentication (disabled anonymous authentication) - Intranet web application - Form with jQuery file upload (Ajax Mini Upload using blueimp) - Able to select multiple files when click browse - adds and upload simultaneously using Generic handler (.ashx - C#) - uploads to a folder in web directory.

Issue:
Works fine in Visual studio environment (When F5 using VS IDE)
Works fine in Chrome and Firefox when hosted on IIS
Breaks in IE 11 when hosted on IIS (Issue is IE 11 either hangs or does not upload all the files - some are uploaded though) - Fiddler gives me 401 error - unauthorised
This happens only for some requests out of all the requests submitted though - It is intermittent.

I can not remove windows authentication and turn on Anonymous authentication.

Please help.

What I have tried:

Tried sending normal GET requests before sending each upload request to get the authentication working again, but does not help.

Tried to queue the added upload request and sending it 2 seconds apart, does not help.

Posted 9-May-16 17:28pm

Nayan Ambaliya

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Comments

Sinisa Hajnal 10-May-16 5:00am

I had the same problem. Never resolved it :( I'll follow this and hope you get an answer.

Member 12003400 10-May-16 9:54am

Can you try putting some delay in between individual file uploads and check?

Nayan Ambaliya 10-May-16 20:04pm

I tried putting delays but it did not help.. I am going crazy.. and I need this to be out of my way as soon as possible.
I have done a lot of googling on this and nearly there to conclude as other people are saying that this is a bug in IE. But I need a workaround and there has to be a workaround. Please help guys.. I have emptied my brain in this...!!!!

Özgür Özdoğan 12-Apr-18 10:07am

Internet explorer KeepAliveTimeout problem. Internet Explorer interrupts the network connection after 60 seconds.

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