Standards Compliance Creates Hidden Leak: V8 Engine Exposes DevTools Status

V8 JavaScript engine's strict adherence to the ECMAScript specification creates an unintended security vulnerability that allows websites to detect whether DevTools is open. This capability enables sophisticated browser fingerprinting and user profiling, raising privacy concerns for developers and end users alike. The issue exemplifies how standardization requirements can sometimes conflict with security best practices, requiring coordination across browsers and standards bodies.