What does it开发者_如何学Go do? is there any benefit to adding this in the <head>
for all browsers?
<meta name="MSSmartTagsPreventParsing" content="true">
It disables a feature that only appeared in the IE6 betas.
Wikipedia have a good write-up on Microsoft's "Smart Tags" feature:
http://en.wikipedia.org/wiki/Smart_tag_%28Microsoft%29
As soon as the feature was announced, many web developers reacted with hostility at the thought of having their content hijacked by third parties. A lot of sites pre-emptively added the above header to their pages to disable the feature, even though it never actually was publicly released (beta only). And of course, the headers stuck around :)
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