I have the following code in the header of a page:

<script type="text/javascript"> // Include standard download options menu

$.get('/lisird/scripts/download_options.html', function(data) {

$('#download_options').append($(data));

});

</script>

which loads

<select id="filetype"><option value="csv" selected="selected">Text (.csv)</option><option value="la">LASP ASCII</option><option value="zip">Zipped CSV (.zip)</option></select>

into

<span id="download_options"></span>

When using jQuery 1.4.1, in Safari and Chrome, the content (a simple form selector) is loaded into the page with no problem. In Firefox and Opera, the content is not appended at all, and Firebug returns a 304 error. Reverting to 1.3.2 eliminates the problem. Thanks for looking into this.