parsing external xml feed with jquery only works in safari
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so i have the below code, which parses an xml feed on a different server (ie www.site1.com) from a locally hosted file (on my computer). it works perfectly in safari. but doesnt work in chrome or firefox. 

when i store the xml feed on the same server as the html file (ie both files on www.site2.com), the file parses fine in all browsers. the problem is, i need to be parsing the xml from an external server. how do i make this work? is it possible? 

i feel like ive tried everything. callback functions, jsonp.js files, and all sorts of jquery options. but no dice. if anyone has any suggestions, i'd be real appreciative! thank you!

    $.ajax({
      type: "GET",
      url: "http://www.otherwebsite.com/external_feed.atom",
      dataType: "xml",
      success: parseXml
    });