isXDomain() reports wrong result for HTTPS pages

[jampy]

The isXDomain() function queries the port this way:

var locPort = window.location.port || 80;

At least with FireFox 5 window.location.port is also an empty string for HTTPS pages on standard port. This means that locPort==80 for HTTPS pages which makes isXDomain() return true.

Perhaps checking window.location.protocol=="https:" could solve the problem.

[rauchg]

socketio/socket.io-client@43f9d29