I just updated kraft & slash and whenever I try to open it it just says something along the lines of "abort" 
Huh... Which browser are you using? I'll look into this, thanks for bringing it to my attention.
If nothing else, I haven't received any other issues about playing the game in Chrome. It's possible that older browsers like Internet Explorer, are unsupported by the current Unity version :( I'm planning to make a Windows build for the game which should hopefully circumvent these issues.