message: nix basename from redirect URL, tidy
diff: <!DOCTYPE html>
  <html lang="en">
  -
  <head>
  <meta charset="utf-8" />
  -
  <title>primer-react</title>
  -
  <script>
  sessionStorage.redirect = location.href;
  </script>
  -
  - <meta http-equiv="refresh" content="0;URL='/primer-react'"></meta>
  + <meta http-equiv="refresh" content="0;URL=/"></meta>
  </head>
  -
  <body>
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
  