Worked on the comfyanonymous/ComfyUI repository to deliver a targeted backend fix that improved file download reliability for end users. Addressed a recurring issue by updating the Python server-side logic to enforce the 'attachment;' directive in Content-Disposition headers across four download endpoints, ensuring files are downloaded rather than rendered inline in browsers. This change reduced user confusion and increased consistency in the file delivery process. Collaborated effectively through co-authored commits, maintaining clear documentation and code quality. Demonstrated strong skills in API development and backend development, focusing on maintainable header handling and aligning the delivery layer with user experience expectations.