[karlshea]

Well as long as they are running WebKit and support the device pixel ratio media query, they will be supported.

But I'm guessing that Android phones with high-dpi screens that support that query are still at the single digit percentage of browser statistics.

[WiseWeasel]

That's fine for CSS images (media queries), but what about content images?

[karlshea]

All the code I've seen for content images involves some JavaScript stuff that uses the device pixel ratio as well.

[WiseWeasel]

The server should not have to decide which image to send, based on whatever it can gather of a combination of various factors, including device display resolution capability (double-density vs regular pixel mapping) and connection quality (wireless vs broadband) or whatever else comes into play. The server should be advertising the capability of high res images and the user agent should be requesting them if it wants.

[karlshea]

That's a great idea, but that's not currently how it works. All of the high-res website image stuff that I've seen all uses client-side JavaScript to fetch the 2x images.

[WiseWeasel]

Yeah, that's just a broken way to go about it. We need to put pressure on browser maintainers to fix it. I feel dirty doing a hack like that.