On Wed, 14 Dec 2011, Glenn Maynard wrote: > > The problem isn't the cost of the URL mapping, it's the cost of keeping > the backing Blob around. If you drag around Google Maps for a long > time, and it used object URLs to load its tile images, it'd be very bad > if the browser had to keep every tile graphic around for the lifetime of > the page.
Browsers do keep them around for the lifetime of the page, in their HTTP cache. -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'