When I navigate to the demo.html page using r855, I get the following error on IE 7:

_inserter null or not found

The patch is to add the following into _onWindowResize:

  var handler = this.handlers[i];

>> if (!handler._inserter) { >> // Flash still being rendered >> continue; >> }

  var size = handler._inserter._determineSize();

Basically I believe the resize handler gets called while the Flash is still loading; the check there ensures we have a Flash object to work with.

This issue was closed by revision r857.