A client improperly converts a POST request to a GET request with long query information.
The client descends into a loop of redirection, such as a redirected URI prefix pointing to a suffix of itself.
The server is under attack by a client attempting to exploit potential security holes.
The client unintentionally or maliciously constructs an excessively long URL.
Shorten the URL by reducing the number of query parameters or the length of each parameter.
Convert the GET request to a POST request to handle larger amounts of data in the request body instead of the URL.
Check and modify server settings to increase the maximum allowable URL length.
Review and correct any redirection loops or misconfigurations causing excessive URL length.