docs-source/supplemental_ui/partials/head-meta.hbs (9 lines of code) (raw):
{{#if page.attributes.robots}}
<meta name="robots" content="{{page.attributes.robots}}">
{{/if}}
<meta property="og:site_name" content="Lightbend Documentation" />
<meta name="author" content="Lightbend Documentation">
<meta itemprop="image" content="{{or page.attributes.social-share-image "https://downloads.lightbend.com/website/social/lightbend-logo-orange-twitter.jpg"}}">
<meta name="twitter:image:src" content="{{or page.attributes.social-share-image "https://downloads.lightbend.com/website/social/lightbend-logo-orange-twitter.jpg"}}">
<meta property="og:image" content="{{or page.attributes.social-share-image "https://downloads.lightbend.com/website/social/lightbend-logo-orange-twitter.jpg"}}" />
<meta property="og:image:secure_url" content="{{or page.attributes.social-share-image "https://downloads.lightbend.com/website/social/lightbend-logo-orange-twitter.jpg"}}" />