Possibly Blocking Issue - Your CDN

[kenlyle2]

I was getting 500 errors, and odd responses like Error: Response header too large.
When I left Postman and ran the CURL command directly, I got a 500 response from my CDN, which happens to be quic.cloud
Setting Bypass CDN in their control panel allowed me to pull a successful GET for my blogs, and it turns out that the POST I had sent to Create Site had actually succeeded.