414 URI Too Long
The HTTP414 URI Too Longclient error response status code indicates that a URI requested by the client was longer than the server is willing to interpret.
There are a few rare conditions when this error might occur:
- a client has improperly converted a
POSTrequest to aGETrequest with long query information, - a client has descended into a loop of redirection (for example, a redirected URI prefix that points to a suffix of itself), or
- the server is under attack by a client attempting to exploit potential security holes.
Some systems implement414 URI Too Long as414 Request-URI Too Large.
Status
http
414 URI Too LongExamples
Form submission using GET
In the following example, an HTML<form> method accidentally usesget instead ofpost.A large amount of form data is appended to the URL specified at the form'saction attribute and is sent as a GET request:
http
GET /search?feedback=it+was+the+best+of+times+it+was+the+worst+of+times… HTTP/1.1Host: example.comThe particular server's URI length limit is reached with this request and a 414 is sent in response:
http
HTTP/1.1 414 URI Too LongContent-Type: text/html; charset=UTF-8Date: Fri, 28 Jun 2024 11:40:58 GMTContent-Length: 1234<!doctype html><head> <title>414 - URI Too Long</title></head> <body> <h1>414 - URI Too Long</h1> <p>The URI provided was too long for the server to process.</p> </body></html>Specifications
| Specification |
|---|
| HTTP Semantics # status.414 |