Worked on enhancing cookie management reliability for web applications using Capacitor, focusing on the CapacitorCookiesPluginWeb module within the ionic-team/capacitor repository. Addressed a bug by refining how the 'expires' attribute is handled in cookies, ensuring it is only included when a valid expiration date is present. This approach prevents invalid cookies from being sent, improving session stability and cross-platform consistency for Capacitor-based apps. Utilized TypeScript and web development best practices to implement the fix, with a particular emphasis on robust cookie management. The work demonstrates attention to detail in maintaining correct behavior across different web environments and platforms.