User CSS should sanitize domain rules without HTTP protocol prefix

[sirn]

Otherwise it would be unexpected by the user when they see their CSS being applied to all sites. Warning message in the manager would be nice, too.

Ideas:

• Bare domain (e.g. google.com) applies to:
  • http://google.com/*
  • https://google.com/*
  • http://*.google.com/*
  • https://*.google.com/*
• Subdomain (e.g. www.google.com) applies to:
  • http://www.google.com/*
  • https://www.google.com/*
• Subdomain and path (e.g. www.google.com/search) applies to:
  • Also follow the above rule.
  • http://www.google.com/search
  • https://www.google.com/search

[ssaadh]

I like this idea. Even if it isn't possible to work without needing the protocol at the beginning of the address, a warning message would be good.