Review mod_security logs to see if a firewall is blocking the request.
A client may request JSON, but the server only offers XML, resulting in a 406.
This paper explores the status code, a client-side error indicating that a server cannot fulfill a request based on the acceptable content types defined by the client. Understanding the 406 Not Acceptable Error
The server may reject requests from specific browsers or user agents that it considers "not acceptable". Troubleshooting and Solutions
Review mod_security logs to see if a firewall is blocking the request.
A client may request JSON, but the server only offers XML, resulting in a 406.
This paper explores the status code, a client-side error indicating that a server cannot fulfill a request based on the acceptable content types defined by the client. Understanding the 406 Not Acceptable Error
The server may reject requests from specific browsers or user agents that it considers "not acceptable". Troubleshooting and Solutions