javascript_include_tag Rails 4 generating “/javascripts/” instead of “/assets” in production

Question

I have a Rails 4 application with

<%= javascript_include_tag \"modernizr\", \"data-turbolinks-track\" => true %>

in the head. In deve

Answer 1

By default, Rails only precompiles application.js, application.css and any images it finds in the assets path. Therefore, in production mordernizr will not get precompiled and thus the javascript helpers will not be able to find the file.

In order to fix the issue, you can add modernizr to the precompile list by modifying the following config in production.rb

config.assets.precompile += ['modernizr.js']

For more information see the Rails Guides