ServiceWorker.js 位于您的 views 文件夹中.这适用于通过 express 作为页面呈现的模板.将其移动到 public 以便它像静态文件一样提供.

ServiceWorker.js is in your views folder. That is for templates that get rendered by express as a page. Move it to public so that it gets served like a static file.