I cannot use Cloudflare proxied dns, my site will appear 501, 502, and sometime 307, 401, all sorts of problem, I dont know why.
Hello there,
Click on those numbers that will tell you the issue & solution.
The problems/ errors surely do have a error code. You may 
in the forum for the answers always.
Hi, thank you for the reply, are those caused by proxied feature? becaue when deploy the backend and frontend directly on the server, there is no issue, once turn on Cloudflare proxied feature, the problem happends