Why do you need the HTTP TRACE method?

HTTP method TRACE designed to diagnose the path that the request to the server has traveled. When the client application sends an HTTP request by the TRACE method, the server returns a response that contains a copy of the original request. This allows the client and intermediate proxies to track the path that the request has traveled and detect any changes that have been made to the request by the intermediate servers.

For example, if you have trouble getting a response from a server, you can use the TRACE method to track exactly which path your request has taken and whether it changes along the way. When a request to a server passes through multiple proxies, the TRACE method allows you to detect whether any changes have occurred in the headers or body of the request during transmission. This can help solve problems with the network or configuration operation of intermediate servers.