There is a fact well known in web developers: User Agent string (navigator.userAgent) always begin with 'Mozilla' if unmodified. If that's not easy to modify, User Agent string can be a good source for 'M' (currently 'M' cost 9620 chars for all browsers, and navigator.userAgent[0] cost 6960 chars).
There is a fact well known in web developers: User Agent string (
navigator.userAgent
) always begin with 'Mozilla' if unmodified. If that's not easy to modify, User Agent string can be a good source for 'M' (currently 'M' cost 9620 chars for all browsers, andnavigator.userAgent[0]
cost 6960 chars).