Improved handling of unavailable/deleted vidble videos

src/methods/vidbleVideo.js

@@ -18,6 +18,10 @@ function vidbleVideo(post) {
         const source = resource.attr('src');
         const type = resource.attr('type');
 
+        if(!source || !type) {
+            throw new Error(`Failed to retrieve (likely removed) vidble video '${post.host.id}'`);
+        }
+
         return {
             album: null,
             items: [{