Andrew Ozz 2fadc857de Responsive images:
- Check if wp_get_attachment_metadata() has returned an array to prevent errors when using SVGs.
- Only add the srcset attribute if there will be a sizes attribute.
- Better filter names.
- Some more inline docs fixes.

Props jaspermdegroot.
See #34430.

git-svn-id: https://develop.svn.wordpress.org/trunk@35419 602fd350-edb4-49c9-b593-d223f7449a82
2015-10-28 20:00:14 +00:00
2015-10-28 20:00:14 +00:00
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