https://bugs.winehq.org/show_bug.cgi?id=50272
--- Comment #12 from Hector Martin marcan@marcansoft.com --- Created attachment 70611 --> https://bugs.winehq.org/attachment.cgi?id=70611 Do not clear the Content-Type header on redirects
Fixed it. It was dumb and had nothing to do with the hardware ID stuff. winhttp isn't keeping the Content-Type header across redirects.