> BTW @JanEggers looks like you are - unintentionally?  - Trying to sneak in fixes for other issues in your PR's

i tried to fix in my private branch that when u navigate to the testsitelink that you get errorcode 404 and not remain on the home page thats what i expect it to do. and jup the merge of this changes  was not intended.

> But yes system.net.httpstatuscode sounds like we wouldn't have to reinvent the wheel.

i had a closer look at it and im not sure if all the errors in CefErrorCode are HTTP errorCodes. at least cef maps them different. filenotfound is 3 or 6 or something but not 404