I was playing around on WebSiteTest today – trying out it new IE9 test feature, and I noticed something new that IE9 does: preconnect. What is preconnect? Preconnect is making a connection to a site before you have a request to use that connection for. The browser may have an inkling that it will need the connection, but if you don’t have a request in hand yet, it is a speculative request, a
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