{{- if not (.Page.Store.Get "mermaid") -}}
  <!-- Include mermaid only first time -->
  {{- /* remove whitespaces */ -}}
  <script src="{{ "mermaid.min.js" | relURL }}"></script>
  {{- with resources.Get "mermaid.json" -}}
    <script>mermaid.initialize({{ .Content | safeJS }})</script>
  {{- end -}}
  {{- .Page.Store.Set "mermaid" true -}}
{{- end -}}

<pre class="mermaid{{ with .Get "class" }} {{ . }}{{ end }}">
{{- .Inner | htmlEscape | safeHTML  -}}
</pre>
{{- /* remove whitespaces */ -}}