--FOO
Content-Disposition: form-data; name="file"; filename="foo.txt"
Content-Type: text/plain

POST this file to the proxy to test multipart file data:

$ curl -v -H "Content-Type: multipart/form-data; boundary=FOO" --data-binary @thisfile


--FOO
Content-Disposition: form-data; name="name"

Dave
--FOO--
