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Bad Request: Your client has issued a malformed or illegal request

February 7th, 2012 | Comments Off

400. That’s an error. Your client has issued a malformed or illegal request. That’s all we know

“If you received this message when you open any url then it may be cause of Your browser has a bad or outdated cookie. So Clear your browser’s cache and cookies.”

How to clear Browser’s cache & Cookies in various Browser click on the below link.
Firefox
Internet Explorer
Mozilla
Netscape
Safari
Other browsers
If clearing your browser’s cache and cookies didn’t fix the problem, visiting the secure site may resolve the issue.

Browser: A browser is an application you can use to access the Internet and visit websites. Google Chrome, Internet Explorer, Firefox, and Safari are all examples of browsers.

Cache: This is a place where information is temporarily stored, such as which webpages you’ve recently visited. The goal of having a cache is to retrieve data faster; for example, if you return to a webpage you’ve already visited, it will load faster.

Cookies: Cookies are small files stored on your computer by your browser when you visit a website, so the website can recall something about you the next time you visit it. For example, a cookie might be used to remember your username or pages on a website you’ve already looked at.

Source – http://support.google.com/mail/bin/answer.py?hl=en&answer=91343