@ -39,7 +39,7 @@ class OembedController < ApplicationController
author_url: profile_url(asciicast.user),
provider_name: 'asciinema',
provider_url: root_url,
thumbnail_url: asciicast.image_url,
thumbnail_url: asciicast_url(asciicast, format: :png),
thumbnail_width: width,
thumbnail_height: height,
html: render_html(asciicast, width),