[wp-trac] [WordPress Trac] #64696: Real time collboration effectively disables persistent post caches while anyone edits a post

[WordPress Trac]

#64696: Real time collboration effectively disables persistent post caches while
anyone edits a post
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 Reporter:  peterwilsoncc             |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  7.0
Component:  Posts, Post Types         |     Version:  trunk
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
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Comment (by peterwilsoncc):

 [https://github.com/WordPress/gutenberg/commit/0013814ce878a64056d25ddb677ac8e81958b192
 WordPress/Gutenberg at 0013814ce] has been merged to throttle syncing when
 the browser tab is in active: ie, when the screen saver is active or the
 user has switched to another tab.

 I initially attempted to use `document.hasFocus()` to slow down too but
 that became super flaky with embeds as it's not possible to determine if a
 cross origin iframe has focus.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64696#comment:23>
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