Galleria code won't work

I’m testing Galleria: galleria.io/docs/getting_started/beginners_guide/

I’m trying to get a bog basic script to work. I put the galleria directory on my web server but the ‘galleria-1.3.4.min.js’ element doesn’t work and won’t load, meaning the ‘Galleria works’ text doesn’t display. I’ve tested that the link to the file js file works so there’s no issue with the path.

My HTML file is outside of the galleria directory on the server www root
Does the galleria directory need certain permissions or any other basic things I need to do or test?

Here is the basic code:

<!doctype html>
<html>
<head>
<script src=“http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js”></script>
<script src=“galleria/galleria-1.3.4.min.js”></script>

</head>
<body>

<script>
if (Galleria) { $(“body”).text(‘Galleria works’) }
</script>

</body>
</html>

Try
if (window.Galleria) { $("body").text('Galleria works') }