[wp-trac] [WordPress Trac] #61806: twemoji is always loaded on Windows devices

[WordPress Trac]

#61806: twemoji is always loaded on Windows devices
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 Reporter:  Clorith       |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Emoji         |     Version:
 Severity:  minor         |  Resolution:
 Keywords:                |     Focuses:  performance
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Comment (by dmsnell):

 @Clorith the Twemoji detection script runs on every page load in the front
 end, and needs to because the server is unable to know if a given
 combination of browser and operating system can display the Emoji
 properly. it does try to store some checks in local storage to avoid
 recomputing the detection when possible.

 it's also not a property of the Emoji that are present in the post. the
 server could potentially avoid sending the script if there are no Emoji in
 the post, but then it would also need to ensure that new content can't
 come in with emoji after page load (for example, as might happen in the
 query block with enhanced pagination activated).

 To be clear, are you seeing the script behave differently in Windows than
 on other platforms? Are you seeing it replace Emoji when you think it
 shouldn't, or are you merely noticing that it executes its detection code?

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Ticket URL: <https://core.trac.wordpress.org/ticket/61806#comment:5>
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