fix feature image?

_includes/metaog.html

+{% if page.layout == "video" -%}
+  {%- assign realslug = page.url | split:'/' | last -%}
+  {% capture feature_image %}https://video.chaotikum.net/thumbnails/{{realslug}}_play.png{% endcapture -%}
+  <meta property="og:image" content="{{feature_image}}">
+  <meta property="twitter:image" content="{{feature_image}}">
+
+{% endif -%}
\ No newline at end of file

_layouts/video.html

@@ -4,6 +4,8 @@ layout: default
 
 {% include site-header.html %}
 
+{% include metaog.html %}
+
 {% capture nowunix %}{{'now' | date: '%s'}}{% endcapture %}
 
 {% capture title %}