Assuming URL with PATH might be an almost general solution, but Sometimes, People install modules in weird ways like using Symlink. (That way could have some benefit, anyway, this is out of issues) In that case, assuming is somehow picky.
My purpose is to rewrite the Translator class to use in Module and node_helper together with one common class. (So that is the reason why pre-connection is needed.)To access translations in both layers, there could be many ways to achieve. However, if the exact URL could be obtained in the background layer, it would be easier and simpler and with the least dependency. (To work on browser and on nodejs layer together)
Of course, there could be many alternative approaches. I’m just curious if there could be a better way.