Git commits in Moodle 3.11.x by Adam Olley

commit 547ddfa39fc5fad62a9e06da1aff0b94dcc35125
Author: Adam Olley <adam.olley@openlms.net>
Date:   Fri, 16 Apr 2021 12:28:28 +0800
Tag:    v3.11.0-beta

MDL-70622 mod_lti: Prevent xss on lti 1.3 authentication script