wp-admin/includes/misc.php:1337Disables suspension of Heartbeat on the Add/Edit Post screens.
$settingsarrayarrayfunction wp_heartbeat_set_suspension( $settings ) { global $pagenow; if ( 'post.php' === $pagenow || 'post-new.php' === $pagenow ) { $settings['suspension'] = 'disable'; } return $settings;}Introduced in 3.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/misc.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.