Question

我的Vue应用程序中有以下服务人员代码：

main.js

if (navigator.serviceWorker) {
  navigator.serviceWorker.register('/service-worker.js').catch(function() {
    console.log('Service worker registration failed.');
  });
}

service-worker.js

let currCacheName = 'premium-poker-tools-5';

self.addEventListener('install', function(event) {
  event.waitUntil(
    caches.open(currCacheName).then(function(cache) {
      let promise = cache.addAll([
        '/',
        'app.js',
        'c7d016677eb7e912bc40.worker.js',
        'f328c7e2b379df12fa4c.worker.js',
        'static/logo.png',
        'static/favicon.png',
        'static/loading.svg',
        'static/cards/ace-of-clubs.png',
        'static/cards/king-of-clubs.png',
        'static/cards/queen-of-clubs.png',
        'static/cards/jack-of-clubs.png',
        'static/cards/ten-of-clubs.png',
        'static/cards/nine-of-clubs.png',
        'static/cards/eight-of-clubs.png',
        'static/cards/seven-of-clubs.png',
        'static/cards/six-of-clubs.png',
        'static/cards/five-of-clubs.png',
        'static/cards/four-of-clubs.png',
        'static/cards/three-of-clubs.png',
        'static/cards/two-of-clubs.png',
        'static/cards/ace-of-spades.png',
        'static/cards/king-of-spades.png',
        'static/cards/queen-of-spades.png',
        'static/cards/jack-of-spades.png',
        'static/cards/ten-of-spades.png',
        'static/cards/nine-of-spades.png',
        'static/cards/eight-of-spades.png',
        'static/cards/seven-of-spades.png',
        'static/cards/six-of-spades.png',
        'static/cards/five-of-spades.png',
        'static/cards/four-of-spades.png',
        'static/cards/three-of-spades.png',
        'static/cards/two-of-spades.png',
        'static/cards/ace-of-hearts.png',
        'static/cards/king-of-hearts.png',
        'static/cards/queen-of-hearts.png',
        'static/cards/jack-of-hearts.png',
        'static/cards/ten-of-hearts.png',
        'static/cards/nine-of-hearts.png',
        'static/cards/eight-of-hearts.png',
        'static/cards/seven-of-hearts.png',
        'static/cards/six-of-hearts.png',
        'static/cards/five-of-hearts.png',
        'static/cards/four-of-hearts.png',
        'static/cards/three-of-hearts.png',
        'static/cards/two-of-hearts.png',
        'static/cards/ace-of-diamonds.png',
        'static/cards/king-of-diamonds.png',
        'static/cards/queen-of-diamonds.png',
        'static/cards/jack-of-diamonds.png',
        'static/cards/ten-of-diamonds.png',
        'static/cards/nine-of-diamonds.png',
        'static/cards/eight-of-diamonds.png',
        'static/cards/seven-of-diamonds.png',
        'static/cards/six-of-diamonds.png',
        'static/cards/five-of-diamonds.png',
        'static/cards/four-of-diamonds.png',
        'static/cards/three-of-diamonds.png',
        'static/cards/two-of-diamonds.png',
        'static/feedback/1.png',
        'static/feedback/2.png',
        'static/feedback/3.png',
        'static/feedback/4.png',
        'static/feedback/flop-selector.png',
        'static/feedback/green-grid-squares.png',
        'static/feedback/user-set-range-to-simulate-to-street.png',
        'static/guides/beginners-guide/1.png',
        'static/guides/beginners-guide/2.png',
        'static/guides/beginners-guide/3.png',
        'static/guides/beginners-guide/4.png',
        'static/guides/beginners-guide/5.png',
        'static/guides/beginners-guide/6.png',
        'static/guides/beginners-guide/7.png',
        'static/guides/beginners-guide/8.png',
        'static/guides/beginners-guide/9.png',
        'static/guides/beginners-guide/10.png',
        'static/guides/beginners-guide/11.png',
        'static/guides/beginners-guide/12.png',
        'static/guides/beginners-guide/13.png',
        'static/guides/beginners-guide/14.png',
        'static/guides/beginners-guide/15.png',
        'static/guides/beginners-guide/16.png',
        'static/guides/beginners-guide/17.png',
        'static/guides/beginners-guide/18.png',
        'static/guides/beginners-guide/19.png',
        'static/guides/beginners-guide/20.png',
        'static/guides/beginners-guide/21.png',
        'static/guides/faq/double-counting/1.png',
        'static/guides/faq/hit-percentage-calculation/1.png',
        'static/guides/faq/hit-percentage-calculation/2.png',
        'static/guides/faq/hit-percentage-calculation/3.png',
        'static/guides/faq/insights/1.png',
        'static/guides/faq/insights/2.png',
        'static/guides/faq/insights/3.png',
        'static/guides/faq/insights/4.png',
        'static/guides/faq/insights/5.png',
        'static/guides/faq/insights/6.png',
        'static/guides/faq/insights/7.png',
        'static/guides/faq/insights/8.png',
        'static/guides/faq/set-checks-to-default/1.png',
        'static/guides/quick-guide/1.png',
        'static/guides/quick-guide/2.png',
        'static/guides/quick-guide/3.png',
        'static/guides/quick-guide/4.png',
        'static/guides/quick-guide/5.png',
        'static/guides/quick-guide/6.png',
        'static/guides/quick-guide/7.png',
        'static/guides/quick-guide/8.png',
        'static/guides/quick-guide/save-load-scenario.png',
        'static/home/1.png',
        'static/home/2.png',
        'static/home/3.png',
        'static/settings/equity-calculator-insights-not-visible.png',
        'static/settings/equity-calculator-insights-visible.png',
        'static/settings/outcome-analyzer-checkboxes-collapsed-1.png',
        'static/settings/outcome-analyzer-checkboxes-collapsed-2.png',
        'static/settings/outcome-analyzer-checkboxes-included-1.png',
        'static/settings/outcome-analyzer-checkboxes-included-2.png',
        'static/settings/outcome-analyzer-hands.png',
        'static/settings/outcome-analyzer-insights-not-visible.png',
        'static/settings/outcome-analyzer-insights-visible.png',
        'static/settings/saved-ranges-1.png',
        'static/settings/saved-ranges-2.png',
        'static/settings/saved-ranges-3.png',
        'static/settings/saved-ranges-4.png',
        'static/settings/included-selectors/double-slider-selector.png',
        'static/settings/included-selectors/log-double-slider-selector.png',
        'static/settings/included-selectors/saved-ranges-selector.png',
        'static/settings/included-selectors/single-slider-selector.png',
        'static/settings/included-selectors/tier-and-category-selector.png',
        'static/settings/tiers/tiers.png',
        'static/settings/visual/dont-show-num-combos-in-range.png',
        'static/settings/visual/green-grid-squares.png',
        'static/settings/visual/multicolored-grid-squares.png',
        'static/settings/visual/show-num-combos-in-range.png',
      ]).then(function () {
        console.log('Successfully cached everything.')
      }).catch(function (error) {
        console.log('Problem caching: ', error);
      });

      return promise;
    }).catch(function () {
      console.error('Error with caches.open or cache.addAll');
    })
  );
});

self.addEventListener('activate', function(event) {
  event.waitUntil(
    caches.keys()
      .then(function getOldCachesThatBeginWithPremiumPokerToolsDash (cacheNames) {
        return cacheNames.filter(function (cacheName) {
          return cacheName.startsWith('premium-poker-tools-') && (cacheName !== currCacheName);
        });
      })
      .then(function removeOldCachesThatBeginWithPremiumPokerToolsDash (oldCachesThatBeginWithPremiumPokerToolsDash) {
        let removeCachePromises = [];

        oldCachesThatBeginWithPremiumPokerToolsDash.forEach(function (oldCacheThatBeginsWithPremiumPokerToolsDash) {
          removeCachePromises.push(caches.delete(oldCacheThatBeginsWithPremiumPokerToolsDash));
        });

        return Promise.all(removeCachePromises);
      })
  );
});

self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.match(event.request).then(function (response) {
      if (response) {
        return response;
      }

      return fetch(event.request);
    }).catch(function () {
      console.error('Error trying to match event request to cache.');
    })
  );
});

当我注释掉'c7d016677eb7e912bc40.worker.js'和'f328c7e2b379df12fa4c.worker.js'时，它可以正常工作。但是，当我取消注释时，会发生以下情况：

我开始使用开发工具，取消注册任何服务工作者，然后删除缓存存储中的所有内容，以便从头开始。
我加载了localhost:8080。
服务人员处于installing状态。
在缓存存储中，我发现c7d016677eb7e912bc40.worker.js和f328c7e2b379df12fa4c.worker.js已成功缓存。
但是，“成功缓存了所有内容。”没有登录到控制台。但是“问题缓存：”也未记录。

我了解the promise you pass to event.waitUntil() lets the browser know when your install completes, and if it was successful.，显然，诺言存在一些问题。但是我不知道问题是什么。它没有碰到.then或.catch块，当我在开发工具中查看缓存存储时，看来'c7d016677eb7e912bc40.worker.js'和'f328c7e2b379df12fa4c.worker.js' 是< / em>已成功缓存。

编辑：我正在使用worker-loader。我感觉到该问题与工作文件的加载方式有关，但是我不明白为什么会有问题，因为当我进入localhost:8080/c7d016677eb7e912bc40.worker.js或localhost:8080/f328c7e2b379df12fa4c.worker.js时，我会回来JS文件。

此外，我已经确保c7d016677eb7e912bc40.worker.js和f328c7e2b379df12fa4c.worker.js中的前缀正确。例如。 c7d016677eb7e912bc40和f328c7e2b379df12fa4c是正确的。

更新：

Answer 1

这与您的想法不符：

13:15   Emulator: 

13:15   Emulator: This application has requested the Runtime to terminate it 
in an unusual way.

13:15   Emulator: Please contact the application's support team for more 
information.

13:15   Gradle build finished with 1 error(s) in 30s 304ms

13:16   Emulator: Process finished with exit code 255

13:16   Executing tasks: [:app:assembleDebug]

13:16   Gradle build finished with 1 error(s) in 16s 836ms

13:18   Emulator: ANGLE: egl::`anonymous- 
namespace'::CreateDisplayFromAttribs: make D3D display

13:18   Emulator: ANGLE: D3D11: rx::Renderer11::generateConfigs

13:18   Emulator: Process finished with exit code 0

13:21   Executing tasks: [:app:assembleDebug]

13:22   Gradle build finished with 1 error(s) in 1m 0s 160ms

您在此处定义了一个名为caches.open(currCacheName).then(function(cache) { let promise = cache.addAll([的变量，但它不能代替promise，这是需要实现的承诺。

您要缓存大量资产，然后：

cache

您在这里什么也不返回，因此'static/settings/visual/show-num-combos-in-range.png', ]).then(function () { console.log('Successfully cached everything.') }).catch(function (error) { console.log('Problem caching: ', error); });不会运行，但这不是错误，因此.then也不会返回。

您的缓存已填充，但是您对.catch的承诺从未实现，因此安装永远不会完成。

要么废弃您的promise变量/ console.logs，然后返回cache.addAll，如下所示：

extendableEvent.waitUntil()

或者使您的函数异步，如下所示：

self.addEventListener('install', function(event) {
  event.waitUntil(
    caches.open(currCacheName).then(function(cache) {
      return cache.addAll([
        '/',
        'app.js',
        'static/settings/visual/show-num-combos-in-range.png',
      ])
    })
  );
});

当我尝试缓存xxx.worker.js时，Service Worker无法安装

1 个答案: