.
<rdar://problem/114823336>
Work that remains here is adding support for killing off the background pages when certain conditions are met (like no recent events, not inspecting the page, etc)
Pull request: https://github.com/WebKit/WebKit/pull/25586
Committed 275819@main (cc9d7c9f1548): <https://commits.webkit.org/275819@main> Reviewed commits have been landed. Closing PR #25586 and removing active labels.