Time to shift the responsive imgs discussion to how we'd actually prefer to do things, and then make it happen. Attrs? CSS? JS? New headers?

…maybe some predefined attribute values for sending a specific extra header with certain assets? <img src="…" headers="viewport"> /cc @beep

@scottjehl Ooh! I like that. Or maybe a BASE-like element that accepts a media value? Could gate requests conditionally.

@beep nice! One of these combined with existing responsive imgs techniques that worked in most browsers before aggressive prefetch set in :)

@beep easier to lobby for a way to manipulate asset request urls with js on the client before they go out? y know ike it worked last month?

@beep and okay this would solve all the things: http://t.co/EDVBJqth (I hear @paul_irish is receptive for these sorts of things… ;) )

@grigs silly: <script preparse> //document.src references raw HTML src document.src = document.src.replace( pattern, replacement ) </script>

@scottjehl *throws a pebble at @paul_irish’s window* *begins testing weight of nearby bricks*

@scottjehl @beep declaring preparse in script would work. It does bug me a bit that it would require JS for something as fundamental as imgs

@scottjehl @beep it *seems* like a long term solution belongs in HTML or CSS. Also not a fan of headers because of server requirement.

@grigs @scottjehl Don’t disagree entirely, but JS would allow us to negotiate other media. The BASE-like approach could be cool too.

@beep agreed. i think there is a general argument for preparse, like defer, that likely goes beyond media even. +@scottjehl

@grigs Well said.

@grigs @beep HTML-only might be done with video-like source tags…? <img src="…"><source media="…" src="…"><source media="..." src="…"></img>

@scottjehl i like the media-xs="(min-device-width:320px and max-device-width:640px)" media-src-xs proposal http://t.co/QTEBd77x +@beep

@scottjehl @beep not sure what old browsers would do with <img><source><source></img>. Sure would be easier on the eyes. :-)

@scottjehl @beep would still work for old browsers and includes syntax we know from media queries.

@grigs - <img src="large"><source src="mobile"></img>. Legacy browsers only see the first img tag. Moderns replace it. +@scottjehl @beep

@_crossdiver you say that with confidence. Why? ;-) @scottjehl @beep

@grigs - Tweeting the web into existence isn't real???? :0

Suggestion for an #ffly HTML <img> tag spec reboot. http://t.co/ip0XMdPo /cc @grigs @beep @scottjehl

@beep - Built an example page for one of the responsive img ideas from last night: http://t.co/ip0XMdPo