|  | @@ -39,14 +39,14 @@ export function createRouterGuards(router: Router) {
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				|  |  |          : ('音乐数字课堂' as string);
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				|  |  |      }
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				|  |  |  
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				|  |  | -    // if ('serviceWorker' in navigator) {
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				|  |  | -    //   console.log(caches.keys(), 'caches.keys()');
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				|  |  | -    //   caches.keys().then(function (cacheNames) {
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				|  |  | -    //     cacheNames.forEach(function (cacheName) {
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				|  |  | -    //       caches.delete(cacheName);
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				|  |  | -    //     });
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				|  |  | -    //   });
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				|  |  | -    // }
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				|  |  | +    if ('serviceWorker' in navigator) {
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				|  |  | +      // console.log(caches.keys(), 'caches.keys()');
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				|  |  | +      caches.keys().then(function (cacheNames) {
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				|  |  | +        cacheNames.forEach(function (cacheName) {
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				|  |  | +          caches.delete(cacheName);
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				|  |  | +        });
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				|  |  | +      });
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				|  |  | +    }
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				|  |  |      if (!isChrome()) {
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				|  |  |        return;
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				|  |  |      }
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