Snippet from media_selector.js that fails in Firefox on ajax call

selections.id.js

      // this gives selected result and the user's selected size
      // and outputs end result of oembed request for html to embed the result at the selected size
      this.get('#/selections/:id', function(context) {
	  $('#result-description-and-sizes').fadeOut();
	  $('#page-spinner').fadeIn();

	  // params['id'] decodes to normal url, but we need escaped version
	  var oembedUrl = this.params['id'];

	  $.get(oembedUrl)
	    .success(function(response) {
		// TODO: make this detect xml or json and parse accordingly
		// TODO: this is limited to same domain only for now, update to handle JSONP
		// probably need to switch to $.ajax and more complete parameters call for jsonp
		var selectionFromResponse = $.parseJSON(response);