Potential Memory Leak

[sagalbot]

      if (val) {
        return document.addEventListener('click', this.clickAway);
      } else {
        return document.removeEventListener('click', this.clickAway);
      }

If Target exists within an element that has stopped event propagation somewhere along the chain, the removeEventListener here will never be called.

solution
Hook into a vue lifecycle hook (destroyed?) to ensure this event listener is removed.