I've got a "YouTube" tab on my page; this jQuery worked previously ("searchTerm" is a val entered by a user; if empty, it has a valid default value ("jquery")):

1.             var urlYouTube = "http://gdata.youtube.com/feeds/api/videos?vq=" + searchTerm + "&max-results=42&orderby=published&alt=json";
   
   
               $.getJSON(urlYouTube, function (data) {
                   // Loop through each feed entry
                   $.each(data.feed.entry, function (i, item) {
                       // Get the URL for the video
                       var url = item.link[0].href;
                       // Get the title of the video
                       var title = item.title.$t;
                       // Get the first 10 characters of date video was published or: YYYY-MM-DD
                       var datepublished = item.published.$t.substring(0, 10);
                       // Get the author name
                       var author = item.author[0].name.$t;
                       // Get the thumbnail image for the video
                       var thumbnailURL = item.media$group.media$thumbnail[0].url;
                       // Construct the display for the video
                       var text =
                           "<br><a href='" + url + "'>" + title + "</a><br>" +
                               "Published: " + datepublished + " by " + author + "<br><br>" +
                               "<img src='" + thumbnailURL + "'><br>";
                       // Append the text string to the div for display
                       $("#dynaMashTab-YouTube").append(text);
                   });
               });
   
   

...as mentioned, this worked. I haven't changed the code, but it has now stopped working. Why might that be the case?