partial_html2.html

<script>
    console.log('APP_ENVIRONMENT: ' + APP_ENVIRONMENT);

    switch (APP_ENVIRONMENT) {
      case 'DEVELOPMENT':
        document.getElementById("polyfills_js").src = 'http://localhost:8085/polyfills.js';

        var vendorJsInterval = setInterval(function () {
          if (window.POLYFILLS_JS_LOADED) {
            document.getElementById("vendor_js").src = 'http://localhost:8085/vendor.js';
            clearInterval(vendorJsInterval);
          }
        }, 50);

        var appJsInterval = setInterval(function () {
          if (window.POLYFILLS_JS_LOADED && window.VENDOR_JS_LOADED) {
            document.getElementById("app_js").src = 'http://localhost:8085/app.js';
            clearInterval(appJsInterval);
          }
        }, 50);
        break;
      case 'TEST':
      case 'STAGING':
      case 'PRODUCTION':
        var oReq = new XMLHttpRequest();
        oReq.onload = reqListener;
        oReq.open("get", "../../Scripts/webapp/dist/assets.json?_" + new Date().getTime(), true); // prevent caching with new Date().getTime()
        oReq.send();

        function reqListener(e) {
          var assets = JSON.parse(this.responseText);
          var BASE_URL = './Scripts/webapp/dist/';

          document.getElementById("polyfills_js").src = BASE_URL + assets.polyfills.js;

          var vendorJsInterval = setInterval(function () {
            if (window.POLYFILLS_JS_LOADED) {
              document.getElementById("vendor_js").src = BASE_URL + assets.vendor.js;
              clearInterval(vendorJsInterval);
            }
          }, 50);

          var appJsInterval = setInterval(function () {
            console.log('interval');
            if (window.VENDOR_JS_LOADED && window.POLYFILLS_JS_LOADED) {
              document.getElementById("app_js").src = BASE_URL + assets.app.js;
              clearInterval(appJsInterval);
            }
          }, 50);
        }
        break;
    }

  </script>