Fixed missing argument to factory closure which caused window to be null in IE10

[auchenberg]

Fixed missing argument to factory closure which caused window to be null in IE10.

Exception thrown in IE:

SCRIPT5007: Unable to get property 'location' of undefined or null reference

File: le.js, Line: 59, Column: 13

[m0wfo]

@auchenberg thanks for this! It looks like the tests aren't happy for some reason so I'll fix them before I merge this.

[auchenberg]

Ahh. I see why. Since I'm now passing an argument to the closure, the function is executed and therefore not returning anything.

Either the inner function should be wrapped in

return function() { 
// func
} 

or we simply should pass window to the closure as an argument.

[m0wfo]

@auchenberg Either way the tests should fail in their current state- we need to look into this first.