Developer credits
Git commits in Moodle 3.6.9 by Sam Hemelryk
commit 95250243495d1c650ac5c52ef567ead161aa1bc3 Author: Sam Hemelryk <sam.hemelryk@totaralearning.com> Date: Tue, 15 Oct 2019 12:28:25 +0800 Tag: v3.6.9 MDL-67175 mod_scorm: sync XHR requests use sendBeacon when available