[wp-trac] [WordPress Trac] #31701: Emoji: Avoid enqueueing JS by default

[WordPress Trac]

#31701: Emoji: Avoid enqueueing JS by default
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 Reporter:  obenland      |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  4.2
Component:  General       |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:  emoji         |     Focuses:  javascript, performance
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Comment (by pento):

 The `browserSupportsEmoji()` function is pretty small - it minifies to
 only a few hundred bytes. The total shim would be less than 1KB. Compared
 to Twenty Fifteen's inline styles, it's positively svelte. :-)

 If we were to write a custom loader (I did one ages ago for the Likes
 widget on WP.com, they're pretty simple), along with combining `wp-
 emoji.js` and `twemoji.js` in the build process, we may be on to
 something. I shall experiment.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31701#comment:4>
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