不允许加载本地资源：chrome-error：//chromewebdata/favicon@2x.png chrome-error：// chromewebdata/

Question

我正在关注 pwa教程贮存。 除指定的错误外，我还收到了以下警告，

The FetchEvent for "https://localhost:7047/Shop/Catalog" resulted in a network error response: an object that was not a Response was passed to respondWith().

我安装了内容的Web清单：

{
    "name": "To table",
    "short_name": "To table",
    "description": "Excellent marketplace",
    "icons": [
        {
            "src": "/android-chrome-192x192.png",
            "sizes": "192x192",
            "type": "image/png",
            "purpose": "maskable"
        },
        {
            "src": "/android-chrome-512x512.png",
            "sizes": "512x512",
            "type": "image/png"
        }
    ],
    "theme_color": "#ffffff",
    "background_color": "#ffffff",
    "start_url": "/",
    "display": "standalone"
}

我的布局中有这些标签，并在指定文件夹中有相应的图像。

<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="manifest" href="/site.webmanifest">
<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5">
<meta name="msapplication-TileColor" content="#da532c">
<meta name="theme-color" content="#ffffff">

Answer 1

我在代码上犯了一个错误。我忘了致电recondwith的处理程序：

self.addEventListener(`fetch`, (e: any) => {
    e.respondWith((async () => {
        const r = await caches.match(e.request)
        if (r) {
            return r
        }
        const response = await fetch(e.request)
        const cache = await caches.open(cacheName)
        cache.put(e.request, response.clone())
        return response
    }))
})

正确：

self.addEventListener(`fetch`, (e: any) => {
    e.respondWith((async () => {
        const r = await caches.match(e.request)
        if (r) {
            return r
        }
        const response = await fetch(e.request)
        const cache = await caches.open(cacheName)
        cache.put(e.request, response.clone())
        return response
    })())
})