code: function querySelectorOnBrowser(selector) {
          // stupid error catching here to stop the browser from printing null cannot be found to stdout
          var query;
          try {
              // do this to simulate a scroll to the bottom of the page to trigger loading of certain ajax elements
              //todo somehow this still doesnt work
              document.body.scrollTop = 0;
              document.body.scrollTop = 9999999999;
              //window.document.body.scrollTop = document.body.scrollHeight;
              query = document.querySelector(selector).innerHTML;
  
          } catch (exception) {
              return false;
          }
          return true;
      }
docs: check if the element referenced by the selector exists