Hi,
I'm encountering CORS issues in Safari when using Uppy to upload directly to Cloudflare Images.
The preflight OPTIONS response from Cloudflare Images returns an empty access-control-allow-headers header:
access-control-allow-origin: *
access-control-allow-headers:
access-control-allow-methods: POST, OPTIONS
access-control-max-age: 86400
I believe that this is causing safari to not parse the headers correctly and then fail with message:
[Error] Header Access-Control-Allow-Headers has an invalid value: 1 GMT
[Error] XMLHttpRequest cannot load [direct-upload-url] due to access control checks