Gem doesn't work with rails-ujs

[psmir]

When I use rails-ujs instead of jquery_ujs and try to remove nested fields by remove_nested_fields_link, I get the following error:
TypeError: $.rails.allowAction is not a function

[Nico Ritsche]

Check this issue here: #92 Possibly you can define $.rails.allowAction somewhere and make it return true as a hack. But haven't tried.

[Sanjay Sharma]

Add gem 'jquery-rails' in your Gemfile.
In your application.js remove //= require rails-ujs and add //= require jquery_ujs. This worked for me in rails 5.2.2

[Pierre Olivier Martel]

I defined $.rails.allowAction = function() { return true } and it fixed the issue when migrating to Rails UJS.