BTW, it seems that a certain mobile phone manufacturer wasn't quite ready for this ;)
http://tech2.in.com/news/smartphones/samsung-galaxy-s3-browser-bug-inflates-data-usage-loading-times/875182 " According to the researchers, the problem is caused by the srcset HTML attribute, which indicates the size and resolution of images a browser should pick based on the device’s screen size and magnification needed. ... The Galaxy S3’s browser, however, has a bug that makes it download all the images specified in the srcset HTML attribute instead of the ones it needs, resulting in long load times and lots of data usage. For instance, the researchers loaded a Wikipedia page that was only 600 KB when browsed using Internet Explorer, but the page’s size inflated to a whopping 2.1 MB on the Galaxy S3. “This bug significantly affects the Wikipedia performance on 3G were these massive number of requests for image downloads overwhelmed the network and ended up timing out rendering an incomplete page,” the research paper reads. " On Thu, Sep 27, 2012 at 3:45 PM, Brion Vibber <br...@pobox.com> wrote: > On Sun, Sep 23, 2012 at 7:59 PM, Brion Vibber <br...@pobox.com> wrote: > >> I've updated the patch to use the 'srcset' attribute as defined in the >> current HTML 5 working group version, only using the density options and >> not the width/height options: >> >> http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-srcset >> >> Patch in gerrit: >> https://gerrit.wikimedia.org/r/#/c/24115/ (core) >> https://gerrit.wikimedia.org/r/#/c/24147/ (MobileFrontend) >> > > Patch has been updated to: > * include QUnit tests for the srcset matching > * match "next-highest density" if there's not an exact match available > > This latter fixes Opera Mobile on my Galaxy Nexus (where devicePixelRatio > reports 2.25 rather than the expected 2) and BlackBerry 10 developer alpha > device (where it reports slightly less than 2.25). Should help with some > other funky configurations where a non-integral zoom is reported as well. > > Currently Firefox for Android doesn't report window.devicePixelRatio, I may > add another special case, should be able to use media queries. > > Opera Mobile works, but Opera Mini does not -- at least because we don't > serve it jQuery etc. :) > > You can see a live demo of this patch in action on these test articles: > * http://leuksman.com/mw/index.php/San_Francisco > * http://leuksman.com/mw/index.php/Lens_(optics) > > Mobile browsers won't automatically switch to mobile view on this wiki > currently, so hit the 'mobile view' link manually to switch in. > > -- brion > _______________________________________________ > Wikitech-l mailing list > Wikitech-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikitech-l -- Tilman Bayer Senior Operations Analyst (Movement Communications) Wikimedia Foundation IRC (Freenode): HaeB _______________________________________________ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
