Target class [csp-nonce] does not exist.

[bluetiger1008]

->addNonceForDirective(Directive::SCRIPT); is causing this error on the server:

On my local, I don't see this error, please help me resolve this.

[tegarkurniawan]

same issue please help me

[Rah1x]

This is because you didnt add the service provider to the laravel's app.php.

1. Either add the following:
   \Spatie\Csp\CspServiceProvider

2. Or, dont use addNonceForDirective()
   Basically, if you are creating a custom policy, dont extend the default shipped Basic policy as that calls addNonceForDirective. Instead directly extend Policy and copy the code from Basic policy minus the addNonceForDirective part.

[pusherman]

Make sure you have nonce_enabled set to true in your csp config.