header-v3-abtest.html

<!-- A/B testable -->

<rec-search-form class="ab-original-searchbar hidden md:flex items-center mr-2 md:mr-4 w-full" search-url="{{ routes.search_url }}" aria-label="Search form"></rec-search-form>
<rec-algolia-autocomplete class="ab-algolia-searchbar search-bar" placeholde="test" search-url="{{ routes.search_url }}" aria-label="Search form"></rec-algolia-autocomplete>

header-v3.html

<!-- Not A/B testable -->

<rec-algolia-autocomplete class="search-bar" placeholde="test" search-url="{{ routes.search_url }}" aria-label="Search form"></rec-algolia-autocomplete>