Javascript not loading

Hi,

I have an issue where my javascript doesn’t seem to load always. My line looks like this:

<script type="text/javascript" src="<?php bloginfo('template_url'); ?>/assets/portfolio/code.photoswipe.jquery-3.0.4.min.js"></script>

If I do something like change the php to an absolute path, it’ll work for the next time I load the page, but then not again until I edit it in some other trivial way… Anyone have any suggestions? :\

Thanks