99% of the time, "bad request" errors on a browser can be solved by clearing cookies/cache. Clearing the cache folder may log you out of some websites or extensions. Caching is intended to help the website load faster, but it might also cause issues if there are too many files stored in the…

Many public computers have software installed to automatically clear browser cookies, cache, and history. Look for the Deep Freeze icon (polar bear) in the System Tray or Task Bar.