In June 2025, Blee focused on improving the reliability of Web Platform Tests within the mozilla/gecko-dev repository, specifically addressing issues in focus management scenarios. By wrapping the test’s event handler in t.step_func(), Blee ensured that assertion failures inside click handlers were properly managed, which prevented timeouts and reduced flaky test outcomes. This targeted bug fix, implemented using HTML and web platform testing methodologies, led to more deterministic results in continuous integration environments. Blee also documented best practices for using t.step_func in similar contexts, providing guidance for future contributors and enhancing the maintainability of the test suite.