text: 
  console.log('extra START')
  
          if('setImmediate' in window) {
              console.log('setImmediate property exists!');
          } else {
              console.log('setImmediate property does NOT exist');
          }
  
  
          if(typeof window.setImmediate !== 'function') {
              console.log('setImmediate shim not loaded!');
          }
  console.log('extra STOP')
  