Angular : service worker configuration

问题

I'm trying to add pwa capabilities to a website running on angular 8. I followed a lot of tutorials, official and unofficial ones and I don't understand what I'm doing wrong.

ngsw-config.json is like this :

{
  "$schema": "./node_modules/@angular/service-worker/config/schema.json",
  "index": "/index.html",
  "assetGroups": [
    {
      "name": "app",
      "installMode": "prefetch",
      "resources": {
        "files": [
          "/favicon.ico",
          "/index.html",
          "/manifest.webmanifest",
          "/*.css",
          "/*.js",
          "/*.min.js"
        ],
        "urls": [
          "https://fonts.googleapis.com/**"
        ]
      }
    }, {
      "name": "assets",
      "installMode": "lazy",
      "updateMode": "prefetch",
      "resources": {
        "files": [
          "/assets/**",
          "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
        ]
      }
    }
  ]
}

I can see in Chrome dev console Application tab that the service worker is registered and running.

But I've got two main problems.

When I pass my browser in offline mode and reload the page, I've got a chrome error message :

It seems the index page can't be served, the service worker is still registered and running.

I can see in online mode that I get the index page from the Service worker, so why is it not working in offline mode ?

In online mode, I can see from the network tab that every requests are cached, even the ones from the api. But I did not configure dataGroups in ngsw-config.json so why is this happening ? Same for external js files not specified in the url array of assetGroups.

The site can be tested here : https://dev.ecni.fr/

Thanks !

EDIT : Same problem when trying with different up to date browsers on two computer running windows. However, working fine with chrome on a mac. What's happening with windows computers ?

回答1:

I can see your website in Chrome offline mode, it looks fine. I also compared with my ngsw-config.json file:

{
  "index": "/index.html",
  "assetGroups": [
  {
    "name": "app",
    "installMode": "prefetch",
    "updateMode": "prefetch",
    "resources": {
      "files": [
        "/index.html",
        "/manifest.json",
        "/browserconfig.xml",
        "/assets/images/favicon/**",
        "/*.css",
        "/*.js"
      ]
    }
  }, {
    "name": "assets",
    "installMode": "lazy",
    "updateMode": "prefetch",
    "resources": {
      "files": [
        "/assets/**",
        "/*.woff",
        "/*.woff2",
        "/*.svg",
        "/*.ttf",
        "/*.eot"
      ]
    }
  }]
}

Everything looks pretty similar except the manifest.json. Is what you have a new format? I'll also share my manifest.json file to be complete, it may be useful:

{
    "name": "ClubUp! Volley Network",
    "short_name": "ClubUp!",
    "theme_color": "#00aeef",
    "background_color": "#ffffff",
    "display": "standalone",
    "scope": "/",
    "start_url": "/search?utm_source=homescreen",
    "dir": "ltr",
    "lang": "it",
    "orientation": "portrait",
    "description": "Cerchi un giocatore o una squadra? Fai un salto in ClubUp! per trovare il tuo team ideale. Provalo, è semplice da usare.",
    "related_applications": [],
    "prefer_related_applications": false,
    "icons": [
        {
            "src": "assets/images/pwa/icon-72x72.png",
            "sizes": "72x72",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-96x96.png",
            "sizes": "96x96",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-128x128.png",
            "sizes": "128x128",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-144x144.png",
            "sizes": "144x144",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-152x152.png",
            "sizes": "152x152",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-192x192.png",
            "sizes": "192x192",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-384x384.png",
            "sizes": "384x384",
            "type": "image/png"
        },
        {
            "src": "assets/images/pwa/icon-512x512.png",
            "sizes": "512x512",
            "type": "image/png"
        }
    ]
  }

The related website is this if you want to compare what's happening in the network tab: https://clubup.it/

来源：https://stackoverflow.com/questions/58994803/angular-service-worker-configuration

标签

angular

service

progressive-web-apps

offline

worker