Question

I am trying to show a simple desktop notification code from a content script, but it doesn’t seem to work.. I have added the permissions in the maifest.json file. Is there a restriction on showing them from the content script ?

Answer 1

Yes, notifications use Chrome specific API, and the content script is only valid for general javascript etc… The background page is where all chrome specific API’s are capable of running… First you’ll need to register your background page in the manifest.json file – like this:

 "background_page": "background.html",

Also in the manifest file, Allow the required permissions:

"permissions": [ "notifications" ],

Then your script in the background page should look like this :

<script>
setTimeout("setNotification();",1); 
function setNotification(){
  var n
  if (window.webkitNotifications.checkPermission() != 0){
    setNotification();
    return false;
  }
n = window.webkitNotifications.createHTMLNotification('http://www.your-notification-address.com');
n.show();}
</script>