Heroku Ruby on Rails app don't updates non-digested assets in public/assets dir

I have Ruby on Rails application on heroku.

We are using ruby 2.1.5

ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-linux]

And Ruby on Rails 4.1.1

Gemfile: http://ift.tt/1awG1mb

Sprockets version (extract from gemfile.lock):

sprockets (2.11.0)
  hike (~> 1.2)
  multi_json (~> 1.0)
  rack (~> 1.0)
  tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.4)
  actionpack (>= 3.0)
  activesupport (>= 3.0)
  sprockets (>= 2.8, < 4.0)

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Of course we are using digested assets

e.g. application-d99ed24f47c5c39b96889148558cb16c.js - THEY are working

Besides that, I am using non-digested assets for CKEditor,

I put them under RAILS_ROOT/public/assets directory

so /assets/ckeditor/config.js should point to RAILS_ROOT/public/assets/ckeditor/config.js

---

Issue

I can't update assets under public/assets

I updated one file from CKEditor, but it doesn't show the changes either when I:

• fetch file via CURL


• look at source in incognito window at chrome (incognito -> 'avoid' caching)

I commited the changes, build on CircleCI passes (continuous integration service). Auto-deploy updates the staging server.

But I still get the old file.

MOREOVER I looked at source of the file using heroku run bash

heroku run bash
cd public/assets/ckeditor
cat config.js

and it RETURNS the old version. Changing this via various tricks e.g. rm cp echo NEW_CONTENT >> NEW_FILE.js also doesn't work.

Heroku returns old version...

PS Moving CKEditor from public/assets/ckeditor to app/assets/ckeditor didn't solve the issue.