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#9995 closed feature (wontfix)

Opened August 07, 2011 06:15PM UTC

Closed August 07, 2011 06:36PM UTC

Last modified August 07, 2011 06:49PM UTC

How to send FormData objects with Ajax-requests?

Reported by: sime.vidas Owned by:
Priority: low Milestone: None
Component: ajax Version: 1.6.2
Keywords: Cc:
Blocked by: Blocking:

I am using FormData instances to append files to Ajax-requests. It works like so:

var xhr = new XMLHttpRequest(),
    fd = new FormData();

fd.append( 'file', input.files[0] ); 'POST', '', true );
xhr.onreadystatechange = handler;
xhr.send( fd );

I would like to do this using jQuery's Ajax-methods, but it doesn't seem to work. I tried this:

var fd = new FormData();    
fd.append( 'file', input.files[0] );

$.post( '', fd, handler );

but I get an illegal invocation error.

Btw, I've laid out this issue in [this StackOverflow question](

Can this be done in jQuery?

Attachments (0)
Change History (3)

Changed August 07, 2011 06:36PM UTC by rwaldron comment:1

component: unfiledajax
priority: undecidedlow
resolution: → wontfix
status: newclosed

You could very easily create an ajax prefilter to achieve this functionality without adding anything to the jQuery core.

Changed August 07, 2011 06:46PM UTC by sime.vidas comment:2

OK, I'll look into this "ajax prefilter" thing... :)

Thank you.

Changed August 07, 2011 06:49PM UTC by rwaldron comment:3

You're welcome

Also, this might help: