Web Browsers - How to Fix a "Bad Request" Error

This document describes what to do if you receive a 400 Bad Request error message upon loading a website.


Problem

When you attempt to access a website, you may sometimes instead receive a "Bad Request" error message where the website content should have loaded. This error often contains the number "400" and may include additional text, such as "Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit."

Solution

First, check the website URL you entered to make sure it is correct. If the web address appears to be entered correctly, then the issue can usually be resolved by clearing your browser's cache and cookies.

For instructions on performing these steps, click on the appropriate link for the web browser you are using:

Windows


BrowserDocument Link
Internet Explorer 6
Internet Explorer 6
Internet Explorer 6 - Windows
Internet Explorer 7
Internet Explorer 7
Internet Explorer 7 - Windows
Internet Explorer 8
Internet Explorer 8
Internet Explorer 8 - Windows
Internet Explorer 9 thru 11
Internet Explorer 9-11
Internet Explorer 9, 10, & 11 - Windows
Edge browser
Edge
Edge - Windows
Firefox 3.5
Firefox 3.5
Firefox 3.5 - Windows
Firefox 4+
Firefox
Firefox - Windows
Google Chrome
Chrome
Chrome - Windows
Opera
Opera
Opera - Windows
Safari
Safari
Safari - Windows

Mac OS X

BrowserDocument Link
firefox 3.5 thru 20
Firefox 3.5 - 20
Firefox 3.5 - 20 - Mac
Firefox 21+
Firefox 21+
Firefox 21+ - Mac
Google Chrome
Chrome
Chrome - Mac
Opera 10.50
Opera 10.50
Opera 10.50 - Mac
Opera 28
Opera 28
Opera 28 - Mac
safari 5
Safari 5
Safari 5 (and older) - Mac
safari 5.1 thru 7.9
Safari 5.1 - 7.9
Safari 5.1-7.9 - Mac
safari 8.0+
Safari 8.0+
Safari 8.0+ - Mac
safari 10.0.1+
Safari 10.0.1+
Safari 10.0.1+ - Mac

Mobile Operating Systems

Operating SystemDocument Link
Android Icon
Android
Android - Chrome
iOS Icon
iOS
Safari - iOS
hp webOS Icon
webOS
Web - webOS
Windows Phone Icon
Windows Phone
Internet Explorer - Windows Phone

If you have any questions, come by the Help Desk at Hardman & Jacobs Undergraduate Learning Center Room 105, call 646-1840, or email us at help@nmsu.edu.




Keywords:Web Browsers - How to Fix a "Bad Request" Error windows max os osx explorer firefox chrome opera safari   Doc ID:80037
Owner:John B.Group:New Mexico State University
Created:2018-02-09 10:12 MDTUpdated:2018-06-07 09:14 MDT
Sites:New Mexico State University
Feedback:  5   4