506 Variant Also Negotiates
5xx Server Error
RFC 2295
The server has a content negotiation loop. It's the server's problem.
What 506 Variant Also Negotiates means {#what}
An internal server misconfiguration: the server tried to use content negotiation, but the chosen variant is itself configured to negotiate — creating a circular reference. Extremely rare.
When you’ll see a 506 {#when}
- Misconfigured content negotiation on the server
- A variant resource that points back to itself as an alternative