HTTP 405 Method Not Allowed Error - Meaning & Fix
The HTTP 405 Method Not Allowed status code indicates that the method used in the request is recognized by the server but not supported by the target resource. An Allow header field is included, listing the methods that are supported by the resource. This ensures the client knows which methods are permissible.
Main causes
Attempting to use an HTTP method not supported by the web server for a specific URL.
Incorrectly configured server or proxy that restricts certain HTTP methods.
Web application firewall (WAF) rules blocking specific HTTP methods deemed unsafe or unnecessary.
Outdated or misconfigured content management systems (CMS) that do not support certain HTTP methods.
# Request example curl -X GET https://sandbox.oxylabs.io/ -H 'Accept: text/html' -H 'Accept-Encoding: br' -H 'User-Agent: Safari/537.36'
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Common fixes
Ensure that the correct authentication credentials (username and password) are being used in the request.
Check if the authentication method (e.g., Basic, OAuth, Bearer Token) required by the API or resource is correctly implemented in the request header.
Verify that the account associated with the credentials has sufficient permissions to access the requested resource.
Confirm that the authentication credentials have not expired or been revoked, and renew or update them if necessary.
# Response example HTTP/1.1 405 Method Not Allowed Content-Type: text/html Content-Length: 23 Method Not Allowed
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