This is probably a dupe by now. But I'll file anyway. The newest Microsoft HTML magic marketing demo "that only runs well in IE" named Irish Spring throws an error in Console: canvas is not defined @ http://ie.microsoft.com/testdrive/performance/irishspring/setup.js:24 The canvas does not display. This demo works across all recent browsers except for Firefox versions.
I don't think this is a dup, fwiw. This demo is relying on the global scope polluter in standards mode. Maybe we should just give up on pushing back on that, since it's clear neither IE nor WebKit are willing to try to move the web forward here, and neither is the spec editor. :(