Uppy file uploader and proxy = headache

Robert AndresenProgramming Leave a Comment

While testing the Uppy.io file uploader I struggled with some CORS-errors. Almost the whole day was wasted troubleshooting and debugging. Trying different headers, debugging network-traffic and reading stack overflow. The browser returned a CORS-error and Uppy itself returned a network traffic error. 99% of all issues and google-results pointed to an api/server issue with my headers. The weird part was …