Horizon dashboard does not work when using Content-Security-Policy headers without unsafe-eval

[shibinphilip789]

• Horizon Version: 5.9.1
• Laravel Version: 8.40.0
• PHP Version: 7.4.27
• Redis Driver & Version: predis 1.1.10
• Database Driver & Version: MySQL 8.0.28

Description:

Horizon dashboard does not work when using content security headers without unsafe-eval
Here is the error displayed in my console.

Steps To Reproduce:

I'm using a package bepsvpt/secure-headers to add CSP to header.
unsafe-eval is set to false in config/secure-headers.php which does not add unsafe-eval to CSP.

Dashboard does work when unsafe-eval is set to true, But I cannot have unsafe-eval added to CSP for security reasons.

[driesvints]

I see the warning too but Horizon works for me without that package. Would appreciate any PR that solves this issue but for now it doesn't seems to be a blocker on default Horizon installations.