Electron should host app from a non-file:/// origin

[moloch--]

Running from a file:/// origin is insecure, for example. A simple solution

[reZach]

Great, thanks for sharing this @moloch--! I'll see to it to put this code in the template.

[reZach]

It seems this method of loading pages doesn't play well with the webpack dev server, I'll have to futz around with it more.

[moloch--]

protocol.interceptFileProtocol can be used to limit certain uses of file:// but is less secure than doing away with it entirely.