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CSP Content Security

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Content Security Policy (CSP) is a browser security mechanism that controls resource loading and execution. Essential for modern web application security, preventing XSS, clickjacking, and injection attacks through strict header policies.

Vad är CSP Content Security

Content Security Policy (CSP) is an HTTP security header that instructs browsers which resources (scripts, styles, images, fonts) are allowed to load and execute. It prevents malicious script injection and other content-based attacks by enforcing a whitelist of trusted sources. Job relevance: Web developers, security engineers, and DevOps professionals implementing CSP strengthen application security and compliance.

🔧 VERKTYG & EKOSYSTEM
CSP headersBrowser developer toolsSecurity violation reportingNonce and hash strategiesTesting tools (CSP evaluator)Server configuration (nginx, Apache)Web application frameworksTrusted Types APISubresource Integrity (SRI)CORS configuration

💰 Lön per region

OmrådeNybörjareMidErfaren
USA$70k$125k$195k
UK£55k£100k£160k
EU€60k€110k€175k
CANADAC$85kC$150kC$240k

🎓 Certifieringar

Web Security certification (CEH, OSCP)
OWASP certification
Security+ certification

❓ Vanliga frågor

What's the difference between CSP and X-Frame-Options?
CSP is comprehensive policy for all resources; X-Frame-Options only prevents clickjacking.
How do I test CSP?
Use browser console violations, CSP evaluator tools, or security scanners.
Does CSP affect performance?
Minimal impact; avoid strict policies on large sites; use nonces/hashes for inline scripts.
What's the best CSP policy?
Strictest possible for your application; start strict, relax only when necessary.
Can CSP break existing functionality?
Yes, if overly strict; test thoroughly; use reporting mode first.
How do I handle inline scripts?
Use nonces (preferred) or hashes; avoid inline if possible.

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