During November 2024, Nathan Haber enhanced the CSS selector engine in the JunkFood02/ladybird repository by implementing namespace-aware attribute matching. He addressed the challenge of correctly handling attribute selectors across different namespaces, such as those found in SVG elements, by introducing a helper for namespaced attribute retrieval and integrating it into the engine’s matching logic. Nathan expanded the test suite to verify that namespace attribute selectors function as intended, improving reliability and preventing regressions. His work, primarily in C++ and HTML, demonstrated a focused approach with a clean, low-risk code change that advanced the project’s adherence to web standards and testing rigor.