templates/index.html

{% extends "base.html" %}
{% block head %}
<script>window.rumConfig = {
    serviceName: "{{ RUM_SERVICE_NAME }}",
    serviceVersion: "{{ RUM_SERVICE_VERSION }}",
    serverUrl: "{{ RUM_SERVER_URL }}",
    pageLoadTraceId: "{{ apm.trace_id }}", // String
    pageLoadSpanId: "{{ apm.span_id() }}", // String
    pageLoadSampled: {{ apm.is_sampled_js }} // Boolean
}</script>
{% endblock %}