[buddypress-trac] [BuddyPress Trac] #9299: Unload event handler in buddypress-notifications.js breaks bfcache

[buddypress-trac]

#9299: Unload event handler in buddypress-notifications.js breaks bfcache
--------------------------+-----------------------------
 Reporter:  westonruter   |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Core          |    Version:  3.0.0
 Severity:  normal        |   Keywords:
--------------------------+-----------------------------
 The use of the `unload` event handler
 [https://github.com/buddypress/buddypress/blob/8c0406454b260566fb17fc6cb21d755838eac675/src
 /bp-templates/bp-nouveau/js/buddypress-notifications.js#L57-L58 in
 buddypress-notifications.js] is currently making the Notifications page
 [https://web.dev/articles/bfcache#never-use-the-unload-event ineligible
 for bfcache]. This event is unreliable, and it will be
 [https://developer.chrome.com/docs/web-platform/deprecating-unload
 deprecated and removed from Chrome]. A more appropriate event should be
 used, such as `pagehide`. This was done in core with
 [https://core.trac.wordpress.org/ticket/55491 #55491].

 The addition of `unload` goes far back to commit
 [https://github.com/buddypress/next-template-
 packs/commit/193538d658fa8c63af769f324631fc2ad4e557c9 193538d] on July 12,
 2016 in buddypress/next-template-packs and
 [https://github.com/buddypress/buddypress/commit/694aee3a61b3afa8b4442a2e2d60aaa8d7fd2194
 merged] for 3.0.0-RC1.

 Enabling bfcache in WordPress while being logged-in is enabled via the
 [https://wordpress.org/plugins/nocache-bfcache/ No-cache BFCache] which is
 a feature plugin to implement
 [https://core.trac.wordpress.org/ticket/63636 #63636].

 Aside: I blogged about bfcache in WordPress in this post:
 [https://weston.ruter.net/2025/07/23/instant-back-forward-navigations-in-
 wordpress/ Instant Back/Forward Navigations in WordPress].

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Ticket URL: <https://buddypress.trac.wordpress.org/ticket/9299>
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