dieulot/instantclick — pull request #25 by lancepioch (2014-02-13 02:19:36+00:00)
Title: Add preloadOnlyOnce function only on mouseover.

When using the mousedown event to preload the pages, the user may hover over the same link multiple times. Whether on purpose or not, this makes it easier on the webserver so that the page isn't continually reserved with no real purpose.