Heroku Example not finding main.js

Failed to load resource: the server responded with a status of 404 (Not Found) https://conway-cljs.herokuapp.com/js/main.js

taking *js out of .gitignore and then pushing solves this problem (for me).

Example/proof: https://conway-cljs2.herokuapp.com/ 

There has got to be a fancier fix, but I (with my rather limited knowledge) mucked around with it a bit and heroku was not having any of it. 
