[wp-trac] [WordPress Trac] #35030: New responsive images

[WordPress Trac]

#35030: New responsive images
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 Reporter:  tonysandwich       |       Owner:  joemcgill
     Type:  defect (bug)       |      Status:  reviewing
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Post Thumbnails    |     Version:  4.4
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by joemcgill):

 Thanks for the added info @tonysandwich.

 I see that your BrowserStack demo is using iOS8, which didn't have support
 for `srcset` with `w` descriptors. So what you're probably seeing is the
 400px image in the `src` shown on a retina screen. You should be able to
 add [http://scottjehl.github.io/picturefill/ picturefill] to polyfill this
 functionality for older browsers that don't support the new responsive
 image attributes, but I will warn you that doing so can lead to double
 downloads in iOS8 (see the "Any Drawbacks" section in
 [https://www.filamentgroup.com/lab/to-picturefill.html this article]).

 A quick way to test this is to install the [https://wordpress.org/plugins
 /ricg-responsive-images/ RICG Responsive Images] plugin, which will add
 picturefill for you by default. Can you let me know this ends up being
 correct?

 Thanks,
 Joe

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Ticket URL: <https://core.trac.wordpress.org/ticket/35030#comment:3>
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