[whatwg] Features for responsive Web design

[Markus Ernst]

Am 15.05.2012 09:28 schrieb Ian Hickson:
>     <img src="face-600-200 at 1.jpeg" alt=""
>          srcset="face-600-200 at 1.jpeg 600w 200h 1x,
>                  face-600-200 at 2.jpeg 600w 200h 2x,
>                  face-icon.png       200w 200h">

Re-reading most parts of the last day's discussions, 2 questions come to 
my mind that I have the impression have not been pointed out very 
clearly so far:

1. Are there other cases in HTML where an attribute value contains more 
than one URI?

2. Have there been thoughts on the scriptability of @srcset? While 
sources can be added to resp. removed from <picture> easily with 
standard DOM methods, it looks to me like this would require complex 
string operations for @srcset.