Detect content security policy (CSP)

[adriaandotcom]

We could detect if a customer has a CSP that forbids our script and call to our API.

• https://blog.bluetriangle.com/how-to-find-out-if-a-site-has-a-content-security-policy-csp-deployed
• https://github.com/macropodhq/csp-parse
• https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP