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angularexpressprogressive-web-appsangular-pwa

Failed to register a ServiceWorker - Angular, Express

I am serving my angular app via an Express server in HTTPS (for PWA enablement). In my development environment, I am able to get PWA with the same Server and angular code. But in higher environment receiving error like this 

ERROR Error: Uncaught (in promise): AbortError: Failed to register a ServiceWorker for scope ('https://xx.xx.xx.xxx:yyyy/') with script ('https://xx.xx.xx.xxx:yyyy/ngsw-worker.js'): An unknown error occurred when fetching the script.
 at O (polyfills.d1c7bf4a2ae7c3435f95.js:1)
    at polyfills.d1c7bf4a2ae7c3435f95.js:1
    at polyfills.d1c7bf4a2ae7c3435f95.js:1
    at e.invoke (polyfills.d1c7bf4a2ae7c3435f95.js:1)
    at Object.onInvoke (main.e1811227a8dd47dc4199.js:1)
    at e.invoke (polyfills.d1c7bf4a2ae7c3435f95.js:1)
    at t.run (polyfills.d1c7bf4a2ae7c3435f95.js:1)
    at polyfills.d1c7bf4a2ae7c3435f95.js:1
    at e.invokeTask (polyfills.d1c7bf4a2ae7c3435f95.js:1)
    at Object.onInvokeTask (main.e1811227a8dd47dc4199.js:1)
Solution

  • As I was using Self Signed Certificate, I received that error. After adding a valid certificate it is working as expected.