www/_includes/algolia.html

{% if page.version %}
    {% assign version = page.version %}
{% else %}
    {% assign version = site.latest_docs_version %}
{% endif %}

{% if page.language %}
    {% assign language = page.language %}
{% else %}
    {% assign language = site.language %}
{% endif %}

<script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script>
<script type="text/javascript">
    docsearch({
        apiKey: '{{ site.algolia_api_key }}',
        indexName: 'cordova',
        inputSelector: '#header-search-field',
        algoliaOptions: { 'facetFilters': ["version:  {{ version }}", "language: {{ language }}"] }
    });
</script>