Worked on the mozilla/gecko-dev repository to enhance the clarity and maintainability of web platform tests related to preloading behavior. Focused on a targeted refactor, the work involved renaming the preloading eagerness level from "eager" to "immediate" within JavaScript-based test suites, reducing ambiguity and aligning terminology with ongoing standards efforts. This change did not introduce any user-facing or functional modifications but established a clearer foundation for distinguishing between different preloading strategies in the future. Leveraged skills in JavaScript and web platform testing to improve test traceability and maintainability, supporting future enhancements to preloading logic and test organization.