I'm working with ROR 4.  I posted this question about how my link_to wouldn't POST correctly using { method: :post }.
I figured out this was because I removed the Rails-Jquery gem when I first set up my app (this is a side project, I hadn't planned on using Javascript/jQuery or so I thought!).
In an effort to get my POST working, I added the gem back to Gemfile.  The file now looks like this:
    source 'https://rubygems.org'
    gem 'aws-sdk'
    gem 'faker'
    gem 'jquery-rails'
    gem 'inline_svg'
    gem 'jbuilder', '~> 2.0'
    gem 'nokogiri'
    gem 'paperclip'
    gem 'pg'
    gem 'rails', '~> 4.2.0'
    gem 'sass-rails'
I did a bundle install.
I added the below code to application.js:
    //= require jquery
    //= require jquery_ujs
    //= require_tree .
What am I missing?  jQuery still isn't loading in the Network tab in Chrome.
I'm guessing I must have changed another config setting on setup (5 weeks ago) that I am now forgetting.
UPDATE:  I also removed turbolinks during the main setup.  Is that needed for jQuery to work?
 
     
    