404 error.
If you want to get Google's cached version of a webpage, just type
cache:[url]
e.g.: cache:https://github.com/quartzjer/TeleHash/issues/5
in the search bar and press return.I know, it's a petty technicality. Safari says it can't open the specified address, and Firefox doesn't understand the URL. I'm even more certain IE will explode if I was to try, but I can't at the moment. From what I remember, IE can't even parse a raw IP address without explicitly putting http:// in front of it.