Am 26.06.2012 um 15:52 schrieb Boris Zbarsky: > On 6/26/12 4:41 AM, Oscar Otero wrote: >> I understand the problem. Sending only the window dimmensions, screen >> resolution and other useful information available in media-queries can be >> enought. For example: >> >> Viewport: width=1024px; height=768px; scale=1; >> >> Or even connection information: >> >> Connection: type=2G; > > I think those have been proposed before. Worth looking into why those > proposals didn't get traction. > > Note, by the way, that in the case of subframes the viewport dimensions are > _also_ not available when image loads kick off. > > -Boris
A responsive image cannot be determined by connection type. Not everyone on a slow connection will get a lowres-image. This is what a developer has to decide which way to go or otherwise (approach of WHATWG -> srcset / resolution based) the browser has to decide. Also, what happens if there's a new type of connection available in future – you cannot rely on browser updates then. -Anselm