On 26 January 2012 09:21, Markus Ernst <[email protected]> wrote: > Am 25.01.2012 16:39 schrieb Matthew Wilcox: > >> It's also worth noting another use case for this being in mark-up and not >> just server-negotiated rescaling of a single image: >> >> Imagine a profile photo on an About page. At large sizes you want to use a >> full body shot, at smaller sizes you need to retain what's important but >> no >> longer clear at small scales: a recognisable face - so you substiture a >> head and shoulders shot. >> >> That's a strong use case where the semantic meaning of the content is the >> same but requires a different resource to be properly conveyed at >> differing >> scales. >> > > This use case shows some kind of consistency issue: The printed version of > a page might match a different media query, and thus use a different image. > If the images have different contents, this can result in a confusing user > experience. > > In order to work around this, UAs might want to keep the first image > loaded, when the content is used for a different type of media, such as > print or PDF output. (That could also be the case for changes of window > size.) >
I think Matthew has it about right with the about page example. I think as long as the user can recognise that it's the same image (albeit cropped/zoomed in some way to adapt to the media) then we're okay.
