for GitHub Pages
      // MIT License
      // https://github.com/rafgraph/spa-github-pages
      // This script checks to see if a redirect is present in the query string,
      // converts it back into the correct url and adds it to the
      // browser's history using window.history.replaceState(...),
      // which won't cause the browser to attempt to load the new url.
      // When the single page app is loaded further down in this file,
      // the correct url will be waiting in the browser's histor