Worked on the DataSQRL/sqrl repository to deliver containerized CORS integration tests for the sqrl-server, focusing on validating cross-origin request handling and preflight behavior. The approach involved developing automated tests in Java to simulate various CORS scenarios, ensuring robust cross-origin validation and improving feedback within continuous integration pipelines. By expanding test coverage for cross-origin configurations, the work reduced the risk of misconfigurations and enhanced the reliability of API endpoints. Collaboration with another contributor was central to the integration test pull request, demonstrating effective teamwork in backend development, API testing, and the use of containerized environments for comprehensive validation.