In case user specifies a custom Content-Type header (necessary at example in case we are using uploadStream to upload a file via mutipart/formdata standard (RFC 2388) the default one will not be added.
The problem is that the check over Content-Type header is case sensitive, so if you added a content-type header, this will not be detected and used correctly.
In case user specifies a custom Content-Type header (necessary at example in case we are using uploadStream to upload a file via mutipart/formdata standard (RFC 2388) the default one will not be added. The problem is that the check over Content-Type header is case sensitive, so if you added a content-type header, this will not be detected and used correctly.
This makes the comparison case sensitive.
Closes #96