[wp-trac] [WordPress Trac] #55491: Replace `unload` event handlers from core

[WordPress Trac]

#55491: Replace `unload` event handlers from core
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 Reporter:  shawfactor      |       Owner:  westonruter
     Type:  enhancement     |      Status:  accepted
 Priority:  normal          |   Milestone:  6.4
Component:  Administration  |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |     Focuses:  javascript, performance
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Comment (by westonruter):

 Something that has come to my attention is that since HTTP Archive
 includes results from Lighthouse, and since Lighthouse has an audit for
 bfcache, we should be able to do a query to determine how frequently
 bfcache is currently getting disabled for sites appearing in HTTP Archive.
 This will not only give us concrete data on the impact of the issue, but
 it will also give a list of sites that are experiencing the issue which we
 can investigate further to see if a core API (e.g. heartbeat) or a plugin
 is responsible.

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Ticket URL: <https://core.trac.wordpress.org/ticket/55491#comment:30>
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