Angular 7：ngsw-worker.js加载失败

Question

问题

有一个使用 Service Worker 的 universal 应用。

最近从 Angular 6.1 升级到 7 。

将更新的文件上传到服务器后，得到：

详细信息：

The script has an unsupported MIME type ('text/html'). Failed to load resource: net::ERR_INSECURE_RESPONSE main.2733b77522d2feee4713.js:1 ERROR Error: Uncaught (in promise): SecurityError: Failed to register a ServiceWorker: The script has an unsupported MIME type ('text/html'). at j (polyfills.92108b287fe28032870b.js:1) at polyfills.92108b287fe28032870b.js:1 at polyfills.92108b287fe28032870b.js:1 at e.invoke (polyfills.92108b287fe28032870b.js:1) at Object.onInvoke (main.2733b77522d2feee4713.js:1) at e.invoke (polyfills.92108b287fe28032870b.js:1) at t.run (polyfills.92108b287fe28032870b.js:1) at polyfills.92108b287fe28032870b.js:1 at e.invokeTask (polyfills.92108b287fe28032870b.js:1) at Object.onInvokeTask (main.2733b77522d2feee4713.js:1) Sr @ main.2733b77522d2feee4713.js:1 t.handleError @ main.2733b77522d2feee4713.js:1 ... (anonymous) @ main.2733b77522d2feee4713.js:1 The script has an unsupported MIME type ('text/html'). Failed to load resource: net::ERR_INSECURE_RESPONSE The script has an unsupported MIME type ('text/html'). Failed to load resource: net::ERR_INSECURE_RESPONSE

SSL

使用https://letsencrypt.org/生成的有效证书。

Chrome安全性

Answer 1

原因是某些软件包的某些版本不能一起使用。

我的解决方案是ng new逐步完成整个新项目并传输文件。之后，一切正常（使用Angular v7）。

结论：在更新任何项目之前检查3次。