Angular ServiceWorkers + MIME type error

Question

I\'m trying to add service workers to our existing angular (5.2, CLI 1.7.1) application. I did everything I was suppose to:

1. I created ngsw-config.json

Answer 1

After trying a lot of different things with Angular8 I finally upgraded angular-devkit from 0.800.2 to 0.803.2

npm install @angular-devkit/build-angular@latest

Then I got an error:

Error: Expected to find an ngsw-config.json configuration file in the [PROJECT] folder. Either provide one or disable Service Worker in your angular.json configuration file.

I fixed this by changing

"ngswConfigPath": "ngsw-config.json" to "ngswConfigPath": "src/ngsw-config.json"

Then it finally worked.