Worked on enhancing the stability and reliability of the element-plus/element-plus repository by addressing a critical runtime error in the Popover component. Focused on defensive coding practices, the developer used TypeScript and Vue.js to guard the getBoundingClientRect method against missing references, ensuring the function executes only when computedReference is present. This approach prevented errors caused by empty nodes or absent references, directly improving user experience stability and reducing crash risks in edge cases. The work emphasized robust component development and contributed to lowering user-reported issues and support overhead for applications relying on element-plus, without introducing new user-facing features during the period.