Allow channel urls to be displayed in YT description

src/invidious/videos/description.cr

@@ -6,14 +6,20 @@ def parse_command(command : JSON::Any?, string : String) : String?
 
   # 3rd party URL, extract original URL from YouTube tracking URL
   if url_endpoint = on_tap.try &.["urlEndpoint"]?
+    if url_endpoint["url"].as_s.includes? "youtube.com/redirect"
       youtube_url = URI.parse url_endpoint["url"].as_s
-
       original_url = youtube_url.query_params["q"]?
       if original_url.nil?
         return ""
       else
         return "<a href=\"#{original_url}\">#{original_url}</a>"
       end
+    else
+      # not a redirect url, some first party url
+      # see https://github.com/iv-org/invidious/issues/3751
+      first_party_url = url_endpoint["url"].as_s
+      return "<a href=\"#{first_party_url.sub("https://www.youtube.com", "")}\">#{first_party_url}</a>"
+    end
     # 1st party watch URL
   elsif watch_endpoint = on_tap.try &.["watchEndpoint"]?
     video_id = watch_endpoint["videoId"].as_s