How to close the moment.js calendar widget after a date is selected?

Question

JavaScript

I've added a moment.js calendar component to pick the date. SingleDatePicker Component

import moment from 'moment';
import {SingleDatePicker} from 'react-dates';
...
render() {
   return (
  <SingleDatePicker
            date={this.state.createdAt}
            onDateChange={this.onDateChange}
            focused={this.state.calendarFocused}
            onFocusChange={this.onFocusChange}
            numberOfMonths={1}
            isOutsideRange={() => false}
          />
 );
 }

When I open the calendar and select a date, it doesn't close when I press Esc. The faq of the widget states that it should be closed. What could be the problem ?