title: ng-focus, ng-blur doesn't works on input type checkbox on safari
body: <p>ng-focus, ng-blur doesn't works on input type checkbox,radio on safari
  Here is the sample code: <a href="https://jsbin.com/ladeba/2/edit?html,console,output" rel="nofollow">https://jsbin.com/ladeba/2/edit?html,console,output</a></p>