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Re:The Edge of HTML5 by ootachi on Saturday January 21, 2012 @08:29AM (#3493518)
That's a Chrome Frame opt-in. Its only effect is to instruct an installation of IE with Chrome Frame installed to switch over to Chrome Frame for these sites.

That said, I do think Chrome Frame is a bad idea because it hijacks one browser and turns it into a weird hybrid instead of just encouraging the use of Chrome in the first place.

Re:The Edge of HTML5 by cleverjake on Saturday January 21, 2012 @09:21AM (#3493612)
its only used in cases where the installation of chrome is not available, or features based on proprietary VBScript attributes that are only available in IE are needed on other sites.