What is client-side exposure?

Client-side exposure is the set of information a public website reveals directly to the browser, including shipped JavaScript, source maps, public config clues, identifiers, and other reachable frontend assets.

Examples

• Source map references
• JavaScript bundles with internal implementation details
• Public configuration values
• Suspicious strings or secret-like patterns

Why it matters

Client-side exposure does not automatically mean a vulnerability, but it can reveal useful attack-surface clues or higher-risk leakage candidates worth manual review.