My program is a web app, and it is written in JS. The code in the application looks remarkably similar to my own. The major difference is they're looking for

My program is a web app, and it is written in JS. The code in the application looks remarkably similar to my own. The major difference is they're looking for a new version of software that exists on the client while mine looks to see if a certain module/game is loaded in the client and then loads it in if it's not already present.