Worked on the chanzuckerberg/single-cell-explorer repository, delivering a targeted update to the staging environment’s CORS policy. This feature allowed requests from specific origins, enhancing both the security and flexibility of development and testing workflows. The implementation focused on backend development and API configuration, leveraging Python to adjust access controls without introducing regressions or affecting production stability. By refining CORS settings, the work enabled faster iteration cycles for developers while maintaining strict origin validation. No bug fixes were recorded during this period, with efforts concentrated on this single feature to improve the development pipeline and streamline cross-origin resource sharing for staging.