HTTP Security Headers and How They Work: Whitepaper | Netsparker
Don't rely on X-XSS-Protection to protect you from XSS | Jemurai
Error parsing header X-XSS-Protection: 1; mode=block, 1; mode=block: expected semicolon at character position 14. The default protections will be applied. · Issue #12 · markshust/docker-magento2-nginx · GitHub