Yren enhanced the livekit/client-sdk-js repository by developing a security feature that restricts media device access to secure contexts, such as HTTPS or localhost. Using TypeScript and front end development skills, Yren implemented targeted code changes that enforce secure context checks for navigator.mediaDevices, ensuring audio and video streams are only accessible in environments that meet modern web security standards. This approach reduces privacy risks for end users by preventing access in insecure contexts, while maintaining compatibility with existing SDK interfaces. The work demonstrates a focused application of web security principles and careful integration with browser requirements, addressing a specific privacy concern.