3D FlipBook - CMS integration

I'm working with a CMS (not WordPress), and want to place the various files in a different location. I have tried adding...

  window.PDFJS_LOCALE = {
    pdfJsWorker: '/uploads/assets/js/pdf.worker.js',
    pdfJsCMapUrl: 'cmaps'
  };

Before the <script src="/uploads/assets/js/3dflipbook.min.js"></script> (this is the new path).

However, when I attempt to view the page after, it's still attempting to load from the default 'css/black-book-view.css' and 'js/default-book-view.js'.

Am I missing something, or doing this in the wrong place?