Why it matters

Output sanitization shapes delivery safety. Understanding shapes design.

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The architecture

HTML escape / sanitize (DOMPurify equivalent).

PII scrub if unintended.

Citation formatting.

Length limits.

Output sanitization stackHTML escape / sanitizeDOMPurify / OWASP HTML SanitizerPII scrubunintended PIIFormat + validatecitations + lengthOWASP Java HTML Sanitizer + custom; layered with content moderation
Output sanitization.
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How it works end to end

OWASP Java HTML Sanitizer.

Content Security Policy on frontend.

PII scrub as backup.

Rich media safety.