IE 9 HTML5 Testing: “Works on My Machine”

One of my esteemed colleagues on an internal forum posted about how great IE 9’s HTML5 support was, based on the result of Microsoft’s test pages.  MS’s tests are sadly self-selective however: meaning they only seem to test for elements that IE9 supports: http://samples.msdn.microsoft.com/ietestcenter/

“Cross-browser Test Results Summary:

W3C Web Standards	Number of Submitted Tests	Internet Explorer 9 Platform Preview	Mozilla Firefox 3.6.3	Opera 10.52	Apple Safari 4.05	Google Chrome 4.1
HTML5	40	78%	63%	48%	43%	43%
...”

Compare that to my own results running html5test.com on the 6(!) browsers I have installed:

Html5 is the first time in a decade that the browser vendors have had a new major standard to fight over; I’m just grateful that this time around we’ll have an army of frameworks such as jQuery that can level the development playing field for us.