Cookies are small pieces of data from websites that are stored on a user’s web browser. They help a website function according to your usage and personalize your activity.

Cache is a quick storage that your web browser refers to when revisiting a website. Instead of downloading the same information every visit, the browser reuses the previous information which reduces traffic and load time.

A 400 Bad Request occurs when a web server doesn’t like your request. Maybe your request doesn’t make sense or you’re asking for too much. The simplest way to fix your request is by starting over ( resetting your cache and cookies).