Worked on the neos/neos-development-collection repository to enhance user experience and reliability in the Neos Media Browser. Addressed a critical issue where flash messages failed to display after Dropzone uploads by reworking the asset creation flow and updating the upload endpoint to use a JSON-based approach. This solution allowed the backend to process uploads and return the necessary data for client-side flash messages, improving feedback during asset uploads and supporting a more consistent, API-driven workflow. Utilized JavaScript and HTML for frontend adjustments, focusing on bug fixing and frontend development to deliver a targeted, single-commit change that improved asset management reliability.