title: Galleria theme occasionally not loading
body: <p>I am using the Galleria slideshow on my site, but I've noticed an error that seems to happen very randomly. Most of the time the slideshow loads correctrly but once in a while I get this error:</p>
  
  <pre><code> Uncaught Error: Fatal error: Theme at javascript/themes/classic/galleria.classic.js
   could not load, check theme path.
  </code></pre>
  
  <p>When I reload the page, it's all back to normal.
  This is the code I'm using to load it:</p>
  
  <pre><code>  &lt;script&gt; 
          // Load the classic theme
     Galleria.loadTheme('javascript/themes/classic/galleria.classic.js');
      &lt;/script&gt; 
  </code></pre>
  
  <p>I have searched around but still haven't found a solution that works. My personal idea was to have a script that keeps loading until it succeeds, since on reload the page works.
  How would I do this?</p>