chrome extension: desktop notification from a background script - macos

Question

I tried to modified the original notification sample and I found that the old webit notification does not work any more.So I changed to chrome notification. Basically, I still reuse the background page like this:
"permissions": [
"notifications",
"http://*/*"
],
"options_page": "options.html",
"background": { "scripts": ["background.js"], "persistent": false },
Any the background.js is just like this:
console.log("Before create " + notID + " notification");
chrome.notifications.create("id"+notID++, options, creationCallback);
function creationCallback(ID) {
console.log("Succesfully created " + ID + " notification");
}
Looks like something is not configured right and I cannot see the notification. And I see the following log:
Before create 0 notification background.js:87
Succesfully created undefined notification background.js:92
Anything do I still miss here?
Thanks
Update: Here is the modified background.js
window.addEventListener('load', function() {
var opt = {
iconUrl: "48.png",
type: 'list',
title: 'Primary Title',
message: 'Primary message to display',
priority: 1,
items: [{ title: 'Item1', message: 'This is item 1.'},
{ title: 'Item2', message: 'This is item 2.'},
{ title: 'Item3', message: 'This is item 3.'}]
};
chrome.notifications.create('notify1', opt, function() { console.log('created!');console.log(chrome.runtime.lastError)});
});
Here is the completed manifest.json:
{
"name": "Notification Demo",
"version": "1.1",
"description":
"Shows off desktop notifications, which are \"toast\" windows that pop up on the desktop.",
"icons": {"16": "16.png", "48": "48.png", "128": "128.png"},
"permissions": [
"notifications",
"http://*/*"
],
"options_page": "options.html",
"background": { "scripts": ["background.js"]},
"manifest_version": 2,
// crbug.com/134315
"web_accessible_resources": [
"48.png"
]
}

Answer 1

It's likely there's an error going on if anything. We've recently started logging errors for unchecked chrome.runtime.lastError so try on a newer version of Chrome perhaps.