2009/8/15 Michael Dale mdale@wikimedia.org:
This is needed for iframe target background upload tasks. ie you upload a file and then you want to take the name of the file you uploaded and use that to insert the image into the edit window. With mime as "application/json" the browser promts the user to "save" the file and we can't eval the document text result in the iframe.
Why use an iframe? Why not something like $.post(), or if that doesn't upload properly, build a form and submit it?
Roan Kattouw (Catrope)