If you are reporting a bug you must create a test-case. You can fork this codepen or this jsfiddle to get started.

Also include re-produce steps and environement specs, such as OS and Browser (We support last 2 versions only).

Remember, calls to alertify.alert, alertify.confirm and alertify.prompt are none blocking.

//bad
if(alertify.confirm('Are you sure?')){
  // this would execute immediatly
}
//good
alertify.confirm('Are you sure?', function(){
  //this would execute when the user clicks ok
});    

Questions

For how-to questions, please post on stackoverflow and don't forget to tag with alertifyjs.