<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
  {% assign pageTitle = nodeCurrent.title | append: ' - ' | append: site.title
  %}
  <title>{{ pageTitle }}</title>
  {% if description %}
  <meta name="Description" content="{{ description }}" />
  {% endif %}

  <link
    rel="shortcut icon"
    href="{{ 'favicon.ico' | absolute_url }}"
    type="image/x-icon"
  />
  <link
    rel="stylesheet"
    href="{{ '/assets/css/just-the-docs-default.css' | absolute_url }}"
  />
  <script
    type="text/javascript"
    src="{{ '/assets/js/just-the-docs.js' | absolute_url }}"
  ></script>
  <link
    rel="stylesheet"
    href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.22.0/themes/prism.min.css"
  />
  <link
    rel="stylesheet"
    href="https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/katex.min.css"
    integrity="sha384-AfEj0r4/OFrOo5t7NnNe46zW/tFgW6x/bCJG8FqQCEo3+Aro6EYUG4+cU+KJWu/X"
    crossorigin="anonymous"
  />

  {%- if site.customHeaderPath -%}
  {% addHeader %}
  {%- endif -%}

  {% if site.search_enabled != false %}
  <script
    type="text/javascript"
    src="{{ '/assets/js/vendor/lunr.min.js' | absolute_url }}"
  ></script>
  {% endif %}
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  {% if nodeCurrent.custom.noindex %}
  <meta name="robots" content="noindex, nofollow" />
  {% endif %} 
  {% if nodeCurrent.custom.canonicalUrl %}
  <link rel="canonical" href="{{nodeCurrent.custom.canonicalUrl}}" />
  {% endif %} 
  {% seo %}
  <meta property="og:title" content="{{ pageTitle }}" />
  <meta name="twitter:title" content="{{ pageTitle }}" />
  {% if site.ga_tracking != nil and processEnv.stage == "prod" %}
  <!-- Global site tag (gtag.js) - Google Analytics -->
  <script async src="https://www.googletagmanager.com/gtag/js?id={{site.ga_tracking}}"></script>
  <script>
    window.dataLayer = window.dataLayer || [];
    function gtag(){dataLayer.push(arguments);}
    gtag('js', new Date());

    gtag('config', '{{site.ga_tracking}}');
  </script>
  {% endif %}
</head>
