javascript - How to not show duplicate Google Chrome notifications? - Stack Overflow

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From this javascript question I learnt how to make desktop notifications work in Google Chrome, and decided to implement this on my site.

So every time a certain something happens, I am making a notification show.

The problem is, that most of the time, the user has more than one window open, which can display notifications, causing duplicate notifications.

Is there a way which allows me to not show duplicate Google Chrome notifications?

Thanks.

From this javascript question I learnt how to make desktop notifications work in Google Chrome, and decided to implement this on my site.

So every time a certain something happens, I am making a notification show.

The problem is, that most of the time, the user has more than one window open, which can display notifications, causing duplicate notifications.

Is there a way which allows me to not show duplicate Google Chrome notifications?

Thanks.

• javascript
• html
• google-chrome
• notifications

Share Improve this question Follow edited May 23, 2017 at 12:18 CommunityBot 111 silver badge asked Oct 26, 2013 at 8:43 ZeriumZerium 17.4k3232 gold badges118118 silver badges187187 bronze badges 5

• can't you save them down in a list, and only show them sometimes? – user1251600 Commented Apr 29, 2014 at 7:44
• @BottleofMilk No, as it is site-wide - that is that notifications can basically be triggered by any page, so I can't keep track of them. – Zerium Commented Apr 29, 2014 at 7:44
• I see. What about websockets? – user1251600 Commented Apr 29, 2014 at 7:45
• @BottleofMilk Not particularly applicable for my situation. – Zerium Commented Apr 29, 2014 at 7:45
• You should send notifications with "collapse_key" set – eloibm Commented Jun 26, 2015 at 8:04

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2 Answers 2

Sorted by: Reset to default 4

Using the same solution, solved it by adding a tag property onto my notification instantiation

var notification = new Notification('Notification Title', 
{
  icon: 'http://cdn.sstatic/stackexchange/img/logos/so/so-icon.png',
  body: "Hello Earth",
  tag:"uniqueTag"
});

I was facing a similar issue where in my Chrome Extension for Eye Rest would show a notification box every 20 minutes and if users don't close the notification box, 20 minutes later another would pop. The way I went about it was to use a callback function with setTimeout to automatically close the notification bar after a given time.

var notification = webkitNotifications.createNotification('48x48.png',"Notification Title","Notification Body");
notification.show();
setTimeout(function(){
notification.cancel();
},2000);

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