What do you mean by status code 431 error?
HTTP Status Code 431 is shown when the server refuses to handle the request because its header fields are too big than they are specified. After minimizing the size of the request header information, the request may be resubmitted.
It can be used when the overall number of request header fields is too excessive, as well as when a single header field is invalid. In the response body, specify which of the two is the issue — preferably, also which headers are too big — to assist individuals who are experiencing this error. This allows users to try to solve the problem by cleaning their cookies.
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Reasons why status code 431 error occurs
- The Referer URL is very lengthy.
- The request contains an excessive number of cookies.
Status
431 Request Header Fields Too Large
Specifications
| Specification | Title |
| RFC 6585, section 5: 431 Request Header Fields Too Large | Additional HTTP Status Codes |
Example
HTTP/1.1 431 Request Header Fields Too Large
Content-Type: text/html
<html>
<head>
<title>Request Header Fields Too Large</title>
</head>
<body>
<h1>Request Header Fields Too Large</h1>
<p>The “Example” header was too large.</p>
</body>
</html>
431 Code References
Symfony HTTP Status Constant Response::HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE
How to fix status code 431 error?
Every HTTP error 431 message is unique, and your website may display this barrier for reasons that are unique to your company. However, for the vast majority of businesses, the issue is due to one of two sources.
Because of cookies or because the referring URL is too lengthy, your visitors may see the code.
Fixing the status code 431 error issue:
Eliminating a lengthy URL. Remove this query before granting access if you know you have active links on a site with an extremely lengthy URL.
Take a thorough look at your code. Character restrictions are applied by spaces in your code, and they aren’t always required. You might also request data that you never use or require, pushing people above your character restrictions.
Take a look at your cookie settings. If your permission code is incorrect, you may be establishing duplicate cookies for your users, resulting in unwanted HTTP failures.
Accepting more cookies. Allow additional cookies in if they’re the source of your problem. Cookies do include security flaws, so act with caution. Accepting additional cookies, on the other hand, maybe beneficial if your objective is to eliminate an error code at all costs.
Before making any modifications, you should consult with your server host. If you change your code to allow additional data but your server refuses, your users may get a similar HTTP code requiring server access. Before making any code changes, it’s usually a good idea to have an open discussion.
FAQs
How do I fix Error 431?
Ways to fix status code 431 error request header too large:
Eliminating a lengthy URL
Taking a thorough look at your code
Taking a look at your cookie settings
Accepting more cookies
What does it mean request header too large?
It means the server refuses to handle the request because its header fields are too big than they are specified.
How do I fix bad message 431 on Chrome?
You can fix the bad message 431 on chrome by clearing cookies by going to the setting and restarting the chrome browser.
Conclusion
I hope this article was able to help you with your doubts and queries related to the HTTP Status Code 431 Request Header Fields Too Large. Still, if there are any queries related to this topic, feel free to ask in the comment section, we would be happy to assist you. Thank you.
Related post:
HTTP Status Code 405 Method Not Allowed
HTTP Status Code 411 Length Required
HTTP Status Code 417-EXPECTATION FAILED
HTTP Status Code 416-REQUESTED RANGE NOT SATISFIABLE
Kedar Dangal
Making a difference, Adding the sum.