[Hummingbird] Trying to un-compress a javascript file in Hummingbird

I have a credit card processing plugin that isn't working when I have Hummingbird activated. I believe I've narrowed the problem down to a specific javascript file that Hummingbird has compressed (under asset optimization). I'm trying to figure out how to get Hummingbird to uncompress just that file. I've reviewed the documentation and forums but I'm still stumped. Can you help me figure it out? Thanks!