Кратко
The server cannot produce a response matching the request’s Accept headers.
Когда возникает
Returned when content negotiation fails (e.g. client demands a format the server cannot produce).
Частые причины
- Accept header requests an unsupported media type
- Overly strict Accept-Language or Accept-Encoding
Как устранить
- Relax or correct the Accept headers
- Request a format the server supports