How to reset Heroku Rails4 asset pipeline cache

I had this problem, then i realized I forgot to configure to serve static assets on the production env, inside config/enviroments/production.rb

config. serve_static_files = true

To purge Heroku's asset cache, you need the Heroku Repo plugin to the Heroku toolbelt. Install that, then use the command

heroku repo:purge_cache

Deploy after purging the cache.

For cleaning assets, run:

rake assets:clobber

Hopefully this helps. To get changes to Heroku in development I run rake assets:clean and then rake assets:precompile RAILS_ENV=production --trace before committing and pushing to Heroku