⚖ Content Security Policy: if few <meta http-equiv=Content-Security-Policy> at the same time - the rules of directives work by logical AND so sources that simultaneously satisfy the rules of both directives will
What is Content Security Policy (CSP) | Header Examples | Imperva
Mitigate cross-site scripting (XSS) with a strict Content Security Policy ( CSP)
Content security policy
reactjs - Why do I get the "default-src: 'none'" Content Security Policy error on React PWA app after I've set up express-csp-header? - Stack Overflow
What is a Content Security Policy & How to Implement Best Practices