未捕获(在承诺中)DOMException:超出配额

Question

我试图 从下面的链接看到离线状态的演示,我得到DOMException:超出配额.

https://serviceworke.rs/offline-status_demo.html

此错误仅在chrome中发生.它在Firefox中运行良好,没有错误在firefox中.

该错误发生在服务工作者的安装事件中.下面发布的服务工作者代码供参考.

// /serviceworker-cookbook/offline-status/

var CACHE_NAME = 'dependencies-cache';

// Files required to make this app work offline
var REQUIRED_FILES = [
  'random-1.png',
  'random-2.png',
  'random-3.png',
  'random-4.png',
  'random-5.png',
  'random-6.png',
  'style.css',
  'index.html',
  'index.js',
  'app.js'
];

self.addEventListener('install', function(event) {
  // Perform install step:  loading each required file into cache
  event.waitUntil(  // Error occurs here... Why???
    caches.open(CACHE_NAME)
      .then(function(cache) {
        // Add all offline dependencies to the cache
        console.log('[install] Caches opened, adding all core components' +
          'to cache');
        return cache.addAll(REQUIRED_FILES);
      })
      .then(function() {
        console.log('[install] All required resources have been cached, ' +
          'we\'re good!');
        return self.skipWaiting();
      })
  );
});

self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.match(event.request)
      .then(function(response) {
        // Cache hit - return the response from the cached version
        if (response) {
          console.log(
            '[fetch] Returning from ServiceWorker cache: ',
            event.request.url
          );
          return response;
        }

        // Not in cache - return the result from the live server
        // `fetch` is essentially a "fallback"
        console.log('[fetch] Returning from server: ', event.request.url);
        return fetch(event.request);
      }
    )
  );
});

self.addEventListener('activate', function(event) {
  console.log('[activate] Activating ServiceWorker!');

  // Calling claim() to force a "controllerchange" event on navigator.serviceWorker
  console.log('[activate] Claiming this ServiceWorker!');
  event.waitUntil(self.clients.claim());
});

如何纠正这个错误？有没有办法增加chrome的配额限制？

EDIT1:
此链接表示Chrome会检查每个来源的配额限制,而firefox具有无限制的配额.

有没有办法删除从原点缓存的所有文件(重置为原始状态)？

Answer 1

Offline-status_demo 仅下载 700kb，因此本身不能超过 5MB Chrome 配额限制。除非 Chrome 缓存已满 - 如果您打开的选项卡太多，就会出现这种情况。

答：在隐身模式下重试。

Answer 2

我认为没有办法增加配额限制。您只需要缓存更少的文件，或者使用更好的压缩。