我正在使用CRA,并尝试在生产环境中使用sw-precache使用自定义服务工作程序。但是即使允许,也无法发送接收通知。当我重新加载页面并再次允许接收通知的权限时,我正在接收通知。这是在我第一次在新的浏览器/系统上打开Web应用程序时发生的。 有人可以帮我吗?
这是我的自定义服务工作者的样子:(sw.js)
var url = '';
self.addEventListener('push', function(event) {
if (!(self.Notification && self.Notification.permission === 'granted')) {
return;
}
var matchingClient = null;
url = '';
event.waitUntil(
self.clients
.matchAll({
type: 'window',
includeUncontrolled: true,
})
.then(windowClients => {
let data = {};
if (event.data) {
data = event.data.json();
}
url = data.action;
for (let i = 0; i < windowClients.length; i++) {
const windowClient = windowClients[i];
if (windowClient.url === url && windowClient.focused === true) {
matchingClient = url;
break;
}
}
if (!matchingClient) {
return self.registration.showNotification(data.title, {
body: data.body,
icon: 'logo.png',
});
}
}),
);
});
self.addEventListener('notificationclick', function(event) {
event.notification.close();
var client = null;
event.waitUntil(
self.clients
.matchAll({
type: 'window',
includeUncontrolled: true,
})
.then(windowClients => {
for (let i = 0; i < windowClients.length; i++) {
const windowClient = windowClients[i];
if (windowClient.url === event.target.url) {
client = windowClient;
break;
}
}
if (!client) {
return self.clients.openWindow(event.target.url);
} else {
return client.focus();
}
}),
);
});
这是sw-precache配置文件:
module.exports = {
staticFileGlobs: ['build/static/css/**.css', 'build/static/js/**.js'],
swFilePath: './build/service-worker.js',
stripPrefix: 'build/',
importScripts: ['./sw.js'],
handleFetch: false,
};