google-chrome - 使用 localhost 注册 Service Worker 失败

Question

当我尝试在 Chrome 42 上的 Node Express V4 服务器提供的基本应用程序中注册 Service Worker 时，出现以下错误:

DOMException: Failed to register a ServiceWorker: A bad HTTP response code (404) was received when fetching the script. {message: "Failed to register a ServiceWorker: A bad HTTP res…code (404) was received when fetching the script.", name: "NetworkError", code: 19, INDEX_SIZE_ERR: 1, DOMSTRING_SIZE_ERR: 2…} code: 19 message: "Failed to

这是注册代码:

    if ('serviceWorker' in navigator){
    console.log("SW present !!! ");

    navigator.serviceWorker.register('worker.js', {
      //scope: '/toto/'
    }).then(function(registration){
      console.log('Service worker registered : ', registration.scope);
    })
    .catch(function(err){
      console.log("Service worker registration failed : ", err);
    });

  }

Answer 1

我认为您正在尝试注册不存在的脚本。在这种情况下这个问题就来了。请检查您的脚本路径和范围路径。也许您在该脚本所在的目录中没有任何“worker.js”。如果是这种情况，请提供完整路径或在同一目录中提供worker.js。