On 2012-05-17 13:30, Kornel Lesiński wrote:
My suggestion is that the srcset (or <picture>) should assume that images are "2x" scale by default. My reasoning behind is: - we have <img> for easy embedding of 1x images today, but we don't have 2x <img> for the future. Having to specify width/height in <img> all the time is annoying. - highdpi displays will become dominant at some point, it's only a matter of time (they pretty much are already in high-end smartphones, and are going to appear in laptops next). Bandwidth is also going to be less of a concern, so it'll be rational and desirable to serve images for the 2x resolution only (and just rely on 96dpi displays scaling them down). Necessity to specify 2x scaling all the time will become a bad default and a historical quirk (like the DOCTYPE), and a source of annoyance where accidentally omitted "2x" syntax makes images large and pixelated. So to future-proof the solution I think: <img src="1x.jpg" srcset="2x.jpg"> should be equivalent to: <img src="1x.jpg" srcset="2x.jpg 2x"> ...
As far as I can tell, making descriptors optional breaks the syntax (it allows comma both in the URI and as a separator between image candidates).
(Please read this as argument for making the syntax less brittle) Best regards, Julian
