Task: Implement a File Upload System with Progress Tracking

Task: Implement a File Upload System with Progress Tracking: a task in Terminal-Lego-15k (Harbor dataset). Build a complete file upload system that demonstrates modern browser file upload capabilities with real-time progress tracking. The system should include both a server-side component and a…

The task

Build a complete file upload system that demonstrates modern browser file upload capabilities with real-time progress tracking. The system should include both a server-side component and a client-side HTML page that uploads a file via HTTP POST using XMLHttpRequest (XHR) with progress events.

Part of PrimeIntellect/Terminal-Lego-15k.