清单：没有添加到主屏幕
我正在尝试将横幅添加到主屏幕，我安装了 service-worker 和清单，尝试了这个但它没有显示横幅。
这是我的代码：
索引.php
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<link rel="manifest" crossorigin="use-credentials" href="manifest.json">
</head>
<body>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
</body>
<script>
if ('serviceWorker' in navigator) {
console.log("Will the service worker register?");
navigator.serviceWorker.register('service-worker.js')
.then(function(reg){
console.log("Yes, it did.");
}).catch(function(err) {
console.log("No it didn't. This happened:", err)
});
}
</script>
</html>
清单文件
{
"short_name": "BetaPage",
"name": "BetaPage",
"theme_color": "#4A90E2",
"background_color": "#F7F8F9",
"display": "standalone",
"icons": [
{
"src": "img/apple.png",
"type": "image/png",
"sizes": "48x48"
},
{
"src": "img/grapes.png",
"type": "image/png",
"sizes": "96x96"
},
{
"src": "img/lemon.png",
"type": "image/png",
"sizes": "144x144"
},
{
"src": "img/orange.png",
"type": "image/png",
"sizes": "192x192"
}
],
"start_url": "index.php"
}
service-worker.js
self.addEventListener('install', function(event) {
console.log("installed");
});
self.addEventListener('activate', function(event) {
// Perform some task
console.log("activated");
});
self.addEventListener('fetch', function(event) {
console.log("fetched");
event.respondWith(
fetch(event.request).catch(function() {
return caches.match(event.request);
})
);
});
但仍然没有显示横幅，我的清单上没有错误。
这是我的服务员
我怎样才能解决这个问题？我目前正在我的本地主机上执行此操作。
2回答
-
斯蒂芬大帝
看看这篇文章：PWA 提示和技巧00 -
Qyouu
将灯塔插件安装到 Chrome 中并在您的页面上运行它并查看结果。00