414 URI Too Long
The HTTP 414 URI Too Long client 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 implement 414 URI Too Long as 414 Request-URI Too Large.
Status
http
414 URI Too Long
Examples
Form submission using GET
In the following example, an HTML <form> method accidentally uses get instead of post.
A large amount of form data is appended to the URL specified at the form's action 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/1.1
Host: example.com
The 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 Long
Content-Type: text/html; charset=UTF-8
Date: 2024年6月28日 11:40:58 GMT
Content-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 |