- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Mon, 13 Feb 2012 09:20:27 -0500
On 2/13/12 1:39 AM, Gray Zhang wrote: > 1. the @defer attribute on<img> and<iframe> > 2. the similar @deferpolicy attribute with value a combination of visible, > network-idle and render-idle > 3. a global switch as a http header or an attribute on html to switch > UAs image loading from "obtain images immediately" to "obtain on demand" or > vice versa. > 4. onscrollintoview/onscrolloutofview events > 5. DOMVisibilityChanged event #4 and #5 are conceptually no better than onscroll plus position calculations, right? I prefer #1 and/or #2 to #3, because it gives the UA strictly more information to use in prioritizing the image loads.... -Boris
Received on Monday, 13 February 2012 06:20:27 UTC