I also have this from the network tab:
/favicon.ico Failed to load resource: the server responded with a status of 404 (Not Found)
app.min.js:1 Uncaught DOMException: Failed to read the 'cssRules' property from 'CSSStyleSheet': Cannot access rules
at https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:12249
at https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:11167
at https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:15576
at jt (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:11139)
at es (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:28205)
at ts (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:28236)
at h (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:2:17277)
at Function.qn [as thru] (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:27151)
at ii (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:13771)
at ee.Qn (https://test-moodle.mydomain.com/pluginfile.php/9553/mod_scorm/content/5/html5/lib/scripts/app.min.js:1:27694)
(anonymous) @ app.min.js:1
(anonymous) @ app.min.js:1
(anonymous) @ app.min.js:1
jt @ app.min.js:1
es @ app.min.js:1
ts @ app.min.js:1
h @ app.min.js:2
qn @ app.min.js:1
ii @ app.min.js:1
Qn @ app.min.js:1
X.(anonymous function) @ app.min.js:2
inlineCssRuleRefs @ app.min.js:14
componentDidMount @ app.min.js:14
(anonymous) @ app.min.js:4
notifyAll @ app.min.js:2
close @ app.min.js:6
closeAll @ app.min.js:8
perform @ app.min.js:8
g @ app.min.js:6
perform @ app.min.js:8
batchedUpdates @ app.min.js:5
r @ app.min.js:7
_renderNewRootComponent @ app.min.js:6
ReactMount__renderNewRootComponent @ app.min.js:6
_renderSubtreeIntoContainer @ app.min.js:6
render @ app.min.js:6
React_render @ app.min.js:6
D @ app.min.js:47
h @ app.min.js:10
fireWith @ app.min.js:10
(anonymous) @ app.min.js:10
h @ app.min.js:10
fireWith @ app.min.js:10
s.(anonymous function) @ app.min.js:10
(anonymous) @ app.min.js:12
h @ app.min.js:10
fireWith @ app.min.js:10
s.(anonymous function) @ app.min.js:10
load (async)
l @ app.min.js:12
scriptSync @ app.min.js:12
sync @ app.min.js:12
sync @ app.min.js:11
fetch @ app.min.js:11
(anonymous) @ app.min.js:47
u @ app.min.js:1
(anonymous) @ app.min.js:1
setTimeout (async)
c @ app.min.js:1
(anonymous) @ app.min.js:47
u @ app.min.js:1
(anonymous) @ app.min.js:1
setTimeout (async)
c @ app.min.js:1
(anonymous) @ app.min.js:47
u @ app.min.js:1
(anonymous) @ app.min.js:1
setTimeout (async)
c @ app.min.js:1
(anonymous) @ app.min.js:47