Getting Error Code 405 - Method Not Allowed. How Do I Fix This? or Why Am I Seeing Error Code 405 and

This might sound obvious, but... are you *sure* the server’s configured to handle POST? Like, if it’s Apache/Nginx, check the config files.

I once spent hours debugging only to realize my .htaccess was blocking POST. Facepalm moment.

Also, if you’re behind a proxy or load balancer, they might be stripping/altering the method.