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Re:WebKit has implemented srcset by othermaciej on Wednesday August 21, 2013 @09:56PM (#6254630)
Manually specifying different HTTP ranges of the same resource is more verbose, more error-prone and more confusing than just specifying different resources. Other than that, I guess it would work.
Re:WebKit has implemented srcset by acdha on Thursday August 22, 2013 @08:34AM (#6256687)
> more verbose, more error-prone and more confusing than just specifying different resources

That's largely opinion: are byte ranges really better than having to maintain clusters of related images? Any serious site already has to deal with things like cache invalidation when a source file changes and by the scale of things which sites do for performance this is certainly no worse than, say, JavaScript/CSS minification or UA sniffing.