ContentType = false does not set automaticlly contentType to Multipart/form-Data

Hi,

In order to upload file to server with JQuery, we need to set the contentType to "False" so that the browser will automatically encode it and add the boundary.

but I noticed that in the header request, the contentType is missing , instead of : multipart/form-data;Boundary=--------XXXXXX

Thank you for your help

Regards

Yacine Alioueche

Capgemini 

AXA France