Reading cross domain RSS feeds (AJAX)

If you want to read an RSS feed from a different domain, let us say you want to read an RSS feed from http://digg.com, then here is a simple example using Google AJAX Feed API.

http://digg.com RSS feed link is http://feeds.digg.com/digg/popular.rss.

Javascript example

<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script>
var RSSURL="http://feeds.digg.com/digg/popular.rss";
var DIGGURL="http://digg.com/";
function getFeed()
{
var strHTML='';
var feed = new google.feeds.Feed(RSSURL);
feed.load(function(result) {
if (!result.error) {    
    var length=result.feed.entries.length;
    for (var i = 0; i < length; i++) {
        var entry = result.feed.entries[i];
        strHTML+='';
        strHTML+='<a href="'+entry.link+'" target="_blank">'+entry.title+'</a><br/>';
        strHTML+=entry.publishedDate+'<br/>';
        strHTML+='<div>';
        strHTML+=entry.contentSnippet+'<br/>';
        strHTML+='</div>';
        strHTML+='<br/>';
    }
    strHTML+='<div align="right"><a href="'+DIGGURL+'" target="_blank">more...</a></div>';
    document.getElementById("digg").innerHTML=strHTML;
}
});
}
</script>
<div id="digg"></div>
<script>
    google.load("feeds", "1");
    google.setOnLoadCallback(getFeed);
</script>

Note: As the Google AJAX Feed API uses Feedfetcher, feed data from the AJAX Feed API may not always be up to date. The Google feed crawler ("Feedfetcher") retrieves feeds from most sites less than once every hour. Some frequently updated sites may be refreshed more often.