Sergey Biryukov 9268ef9788 Media: Add support for WebP images in the Thickbox library. ...

This ensures that `.webp` images are properly recognized and displayed in the modal as expected.

Follow-up to [50810], [51227], [52073].

Props ilunabar, graham73may, sabernhardt, mukesh27, SergeyBiryukov.
Fixes #55786.
Built from https://develop.svn.wordpress.org/trunk@53451


git-svn-id: http://core.svn.wordpress.org/trunk@53040 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2022-05-30 14:53:11 +00:00

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loadingAnimation.gif

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macFFBgHack.png

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thickbox.css

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thickbox.js

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