I just started with the APIs and Microservices curriculum and the first challenge is to add an author to the package.json. I used replit, modified the package.json, started the app in replit and copied the link into the challenge to complete the task.
Everything worked fine but I am trying to understand how the challenge verified, that I added the author. All it has is the URL to my app (npm.username.repl.co) which shows the index.html page. How did the challenge access the package.json file in my project?