Am not getting the expected results through my browser because of This request has been blocked; the content must be served over HTTPS.
I have tried adding this
{% block head %}
{{super()}}
<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
{% endblock %}
Which has worked for other people
'https://matic.herokuapp.com/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://matic.herokuapp.com/status/9092ba37-591e-4e73-b9e3-0ad9bef26cb1'. This request has been blocked; the content must be served over HTTPS.