Improve error message for 404s

refs #9447

lib/remote/httphandler.cpp

@@ -104,7 +104,7 @@ void HttpHandler::ProcessRequest(const ApiUser::Ptr& user, HttpRequest& request,
 	if (!processed) {
 		String path = boost::algorithm::join(request.RequestUrl->GetPath(), "/");
 		HttpUtility::SendJsonError(response, 404, "The requested path '" + path +
-				"' could not be found.");
+				"' could not be found or the request method is not valid for this path.");
 		return;
 	}
 }