Worked on the sxjeru/lobe-chat repository to enhance application stability by addressing a critical issue with PDF.js worker path loading in a single-page application environment. Focused on ensuring reliable PDF rendering across route transitions, the solution involved leveraging Vite’s ?url import to load the worker from local assets, which maintained correct hashed asset paths regardless of navigation. This approach eliminated route-specific PDF load failures and improved the overall user experience. The work demonstrated effective use of React and Vite for front end development, with JavaScript and TypeScript employed to integrate asset handling, SPA routing, and PDF.js within the project.