title: Angular 4 Removal of EventListeners in zone.js
body: <p>I am currently working with Angular 4 which uses zone.js natively to monitor activity on the DOM. </p>
  
  <p>In my Angular application I am getting zone.js errors:
  [Violation] 'keydown' handler took 209ms - zone.js</p>
  
  <p>I do not want to disable zone.js from Angular all together, but would like to disable specific functionality of zone.js to prevent it from placing the EventListener on 'keydown' functionality.</p>
  
  <p>I am using the latest version 08.14 of zone.js and any help to disable or modify zone.js to prevent it from monitoring this specific activity would be greatly appreciated.</p>
  
  <p>In Angular, the simple usage of "RemoveEventListener" will not Remove EventHandlers placed by zone.js.  This requires something specific to zone.js</p>