During their work on the microsoft/roosterjs repository, Xiaozwan focused on enhancing editor reliability for iOS users by addressing a nuanced issue with auto-capitalization when deleting the first character in the editor. They implemented targeted changes in JavaScript and TypeScript, updating environment detection and keyboard delete logic to better align with iOS browser behavior. This fix preserved native auto-capitalization, ensuring a more consistent user experience on iOS devices. Xiaozwan’s work demonstrated a deep understanding of editor development and front-end challenges, as they carefully analyzed platform-specific behaviors and delivered a robust solution that improved the editor’s usability for mobile users.