cfsilence · April 10, 2018 03:45
diff --git a/chat.component.ts b/chat.component.ts
 // page visibility API
 // see: https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API
 window.addEventListener('webkitvisibilitychange', (e) => {
  this.showDesktopNotification = document['webkitHidden'];
 });
	// page visibility API
	// see: https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API
	window.addEventListener('webkitvisibilitychange', (e) => {
	this.showDesktopNotification = document['webkitHidden'];
	});