HEAD is broken on IE8

[jaredhirsch]

IE8 doesn't have the Array.prototype.indexOf method, which was introduced when #15 was merged: see jschannel line 550

Discovered this downstream in browserid :-\

[jaredhirsch]

will fix in the morning.

[edsu]

That was morning 20 days ago?

[pokono]

Add a year to that..

[Aaronius]

Make that two.

[jaredhirsch]

I've deleted a spammy self-promoting comment, and now I'm going to lock this conversation :-(

If you have your own project that provides postMessage plus some nice stuff on top, please don't promote it in the bug trackers of other projects.