During January 2026, Mochiya98 developed a CSP-Protected Page JavaScript Evaluation Fallback for the facebook/react repository, addressing the challenge of React DevTools functionality on pages with strict Content Security Policy settings. By introducing a content script, fallbackEvalContext.js, and routing evaluation requests through this fallback when chrome.devtools.inspectedWindow.eval was blocked, Mochiya98 ensured DevTools remained operational in CSP-restricted environments. This solution, implemented using JavaScript and leveraging the Chrome API, improved reliability for developers working with sandboxed CSPs. The work demonstrated a focused approach to browser extension development and cross-team collaboration, delivering a targeted feature that reduced support friction and enhanced developer experience.