Reason

Reason: Did not find method in CORS header 'Access-Control-Allow-Methods'

What went wrong?

The HTTP method being used by the request is not included in the list of methods specified by the response’s header. This header specifies a comma-delimited list of the HTTP methods which may be used when using CORS to access the URL specified in the request; if the request is using any other method, this error occurs.

For example, if the response includes:

Access-Control-Allow-Methods: GET,HEAD,POST

Trying to use a request will fail with this error.

Make sure your code only uses the permitted HTTP methods when accessing the service.

If the server includes any unrecognized or undefined method names in its Access-Control-Allow-methods header, a different error occurs: Reason: invalid token ‘xyz’ in CORS header ‘Access-Control-Allow-Methods’.

If the server is not under your control, see Client-side considerations for alternative approaches.

See also

• CORS errors

• Glossary:

• CORS introduction

• HTTP request methods