Errors with a wao.io -Error code of 20xx indicate either a communication error between wao.io and the origin server, or a client sending a broken or forbidden request. Typical issues are origin timeouts or unreachable servers.
2000 - "RequestError"
This is a generic request error.
2001 - "RequestTimeout"
This is caused by an operation timeout when requesting a resource from the backend.
2003 - "RequestDenied"
This error code is returned if a client sends a request for a forbidden resource as configured in the security section of the site, for example the XMLRPC-API of Wordpress.