405 Method Not Allowed
4xx Client error
The address exists but does not accept that method.
| On the wire | HTTP/1.1 405 Method Not Allowed |
|---|---|
| Code | 405 |
| Is it an error | Yes — this is an error |
| Category | 4xx Client error |
The problem is on the request side; sending the same thing again will fail again.
How to read this
- The first digit of a status code carries the meaning: 4 means the request, 5 means the server.
- 404 means "not there"; 403 means "there, but not for you". Swapping them makes debugging slower.
- Header names are case-insensitive — Content-Type and content-type are the same header.
- Caching and CORS problems usually come down to one header line, visible in the browser’s network tab.
Frequently asked questions
QWhat does HTTP 405 Method Not Allowed mean?
The address exists but does not accept that method.
QWhat does 405 Method Not Allowed look like on the wire?
It travels as HTTP/1.1 405 Method Not Allowed
QIs 405 Method Not Allowed an error?
Yes. A code starting with 4 blames the request; one starting with 5 blames the server.
QWhat group does 405 Method Not Allowed belong to?
The 4xx client error group; the rest of that group is listed further down.