Getting HTTP Error 405 Reason: Method Not Allowed – How Do I Fix This? or Why Am I Seeing HTTP Error

http error 405 reason: method not allowed can also happen if the server’s HTTP method whitelist is messed up.

If you’re using Nginx/Apache, check the config for `limit_except` or `AllowMethods`.

Or, if it’s a REST API, maybe the endpoint just doesn’t exist for POST. Try hitting it with GET first to see if it’s alive.