Pei Che worked on the web-platform-tests/wpt repository, focusing on migrating all prerender-related tests to run exclusively over HTTPS. This involved updating test routing and systematically renaming files to the .https.html convention, ensuring alignment with an upcoming restriction that disallows plaintext HTTP prerendering. Using HTML and web platform testing skills, Pei Che’s work prepared the test suite for enhanced security requirements while maintaining comprehensive coverage of prerender scenarios. The migration was implemented through two targeted commits, reflecting a focused and well-scoped engineering effort. The work addressed future maintenance and risk, demonstrating depth in test infrastructure and security-oriented test migration.