Can't load games by one developer

I’m using chrome and every game loads and plays no problem besides games by developer ‘conceptis’. Whenever I try to load one of their games the page goes to a white screen and in plain text says

400 Bad request

Your browser sent an invalid request.

Is it just me or site wide? If it is on my end, any ideas on how to fix it? I’ve tried removing cookies and things associated with those games I could find and can’t figure anything out.

This is a common issue if you’ve tried loading games by the same developer in rapid succession.

Originally posted by 123aaa789:

400 errors are caused by opening something like 10 games by a developer in a short enough period of time. In order to “fix” it, you need to clear your session cookies (not all cookies, and not cache). I’m not sure of a vanilla way to do it from your browser, but I use Web Developer for this and other reasons. It adds in a right-click menu that allows you to resolve this problem with just a couple clicks.

Thanks, that got it all straightened out. I lost some game saves, but that just gives me an excuse to go back and play some good games again.