How to tell where JS comes from?


I’m trying to figure out where certain JS-files come from? If I look in the console in Chrome, I can see two jquery-ui files are loaded. (I’m trying to work with jsonform, but it does not work. I’ve searched the interwebs, and it seems this can be caused by a conflicting jQuery-version.) As I am not sure what those jQuery files are, how can I tell where they come from? As meteor lumps it all together, is there a way to tell which package/location on the server they come from?