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

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Reason

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

What went wrong?

The HTTP method being used by the {{Glossary("CORS")}}  request is not included in the list of methods specified by the response’s {{HTTPHeader("Access-Control-Allow-Methods")}}  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 {{HTTPMethod("PUT")}}  request will fail with this error.

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

[!NOTE] 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’.

See also

• CORS errors
• Glossary: {{Glossary("CORS")}} 
• CORS introduction
• HTTP request methods