SSL certificates not accepted in browser - Safari, chrome, firefox

## Environment

* Operating system (including version): macOS Big Sur 11.6.7 (20G630)
* mkcert version (from `mkcert -version`): v1.4.4
* Server (where the certificate is loaded): Angular cli has in build serving mechanism to load SSL certs, https://angular.io/cli/serve
* Client (e.g. browser, CLI tool, or script): browser (Chrome, Safari, Firefox)

## What you did

```bash
brew install mkcert
brew install nss
mkcert --install
mkcert localhost 127.0.0.1
```
After generating certificates, I attached them to angular cli. (It is able to detect the certificates at a given path)

```bash
ng serve --ssl \
--ssl-cert "/Users/gru/development/angular/ssl/localhost+1.pem” \
--ssl-key "/Users/gru/development/angular/ssl/localhost+1-key.pem”
```

### I have gone through some closed issues and tried to restart the browser and the entire machine.
But none of them helped.

## What went wrong