pdf.js webworker を読み込もうとしていますが、できません!?
//cdn.localhost/js/pdf/worker_loader.js?v=280ブラウザで開くとURLが存在する
エラー
Failed to load script: //cdn.localhost/js/pdf/worker_loader.js?v=280
(nsresult = 0x805303f4)
html (URL = //secure.localhost)
<!DOCTYPE html>
<html>
    <head></head>
    <body>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/core.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/util.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/api.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/canvas.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/obj.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/function.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/charsets.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/cidmaps.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/colorspace.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/crypto.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/evaluator.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/fonts.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/glyphlist.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/image.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/metrics.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/parser.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/pattern.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/stream.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/worker.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/bidi.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/jpg.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/jpx.js?v=280"></script>
        <script type="text/javascript" src="//cdn.localhost/js/pdf/jbig2.js?v=280"></script>
        <script type="text/javascript">
            PDFJS.workerSrc = '//cdn.localhost/js/pdf/worker_loader.js?v=280';
            PDFJS.getDocument(voucher_url).then(function(pdf){
                pdf.getPage(1).then(function(page){
                    var scale = 1.5,
                        viewport = page.getViewport(scale),
                        canvas = document.createElement('canvas'),
                        context = canvas.getContext('2d');
                    $(canvas).appendTo(container);
                    canvas.height = viewport.height;
                    canvas.width = viewport.width;
                    var renderContext = {
                        canvasContext: context,
                        viewport: viewport
                    };
                    page.render(renderContext);
                });
            });
        </script>
    </body>
</html>
//cdn.localhost/js/pdf/worker_loader.js?v=280
'use strict';
// List of files to include;
var files = [
  'core.js',
  'util.js',
  'canvas.js',
  'obj.js',
  'function.js',
  'charsets.js',
  'cidmaps.js',
  'colorspace.js',
  'crypto.js',
  'evaluator.js',
  'fonts.js',
  'glyphlist.js',
  'image.js',
  'metrics.js',
  'parser.js',
  'pattern.js',
  'stream.js',
  'worker.js',
  'jpx.js',
  'jbig2.js',
  'bidi.js',
  'jpg.js'
];
// Load all the files.
for (var i = 0; i < files.length; i++) {
  importScripts(files[i]);
}