Fix 400 Bad Request, Request Header or Cookie Too Large

When you are browsing websites you might get this 400 Bad Request error sometimes on your browser. Let’s learn how to fix this error and also learn what this 400 error is.

What is 400 Bad Request Error and Why does it occur?

This 404 Bad request is a browser error returned when the website was not accessible due to some issues with the request header or cookies. This error occurs when the Request header or the Cookie Size for that particular domain you are trying to access is too large than the server can handle. So you will get the 400 Bad Request, Request Header or Cookie Too Large error display.

How To Fix 400 Bad Request, Request Header or Cookie Too Large

Here are many methods we can use to fix this 404 errors on your browsers.

1. Hard Refresh the website using your browser.

When you encounter the error the first time you can try hard refreshing on your browser by clicking on the Ctrl + F5 key shortcut keys together. This will clear the browser cache for that particular page and request the latest version of the page from the server.

Now your browser will refresh the page and the error will be fixed sometimes. If its now fixed then follow the below steps.

2. Clear Browser Cache Manually

  1. Clear Browser Cache on your Google Chrome
  2. Clear Browser Cache on your Firefox Browser
  3. Clear Browser Cache on your Microsoft Edge browser

3. Clear Cookies on your Browser

After clearing the browser cache on your browser you need to also clear the cookies as well.

  1. Clear Browser Cookie on your Google Chrome

To clear the Cookie for a specific website on your Google Chrome browser Click on the SSL Clock icon before the website Url in the address bar and click on the cookies.

A popup window will open here click on the Remove option to clear the cookies for the particular site.

Now refresh the page again to check whether the 400 bad request issue has been resolved.

2. Clear Browser Cookie on your Firefox Browser

Click on Ssl Icon before the website address and click on Cookies to clear cookies for a particular domain

3. Clear Browser Cookie on your Microsoft Edge browser

Do the same procedure as Google Chrome on your Microsoft Edge browser to clear the cookies for a particular website.

I hope you were able to clear your browser cookies and cache in order to solve the issue. You can also use a Software like CC cleaner in order to clear the cookies for a particular website and fix the 400 Bad Request issue.

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