Git commits in Moodle 3.6.x 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