Both in my development and production environment, IE 10 is refusing to send any POST data via a simple $.ajax call.
My script looks like this:
d = \
I had this same issue but just with a single request, a I mean I have a web app that handles many ajax requests. Check out your markup. I had the form inside a table for layout
<table>
<form></form>
</table>
I just change it the other way. form > table.
I have something similar (Problems with image upload from browsers to Amazon S3), and I have found that in my case the xhr object crashes when it is post-requesting http://some.server.com from https://my.local.server.com:123/foo. It crashes on xhr.open("POST", httpUrl, true) call.
It probably is an IE10 bug (what a surprise ;) ), it is crashing both on Win7, and Win8.