title: include view helpers for view being called from a Service object
body: <p>I have an object that prebuilds a cached page. I call it like this:</p>
  
  <pre><code>str = ActionView::Base.new(Rails.configuration.paths['app/views'])
                            .render(partial: 'item_generator/item_with_modal',
                                    locals: { item: @item, format: 'div',
                                              create_external: @create_external,
                                              view_file: @view_file })
  </code></pre>
  
  <p>How would I make it so that ApplicationHelper would be included so that helpers could be called? </p>
  
  <p>I currently have something like: </p>
  
  <pre><code>&lt;%=raw ApplicationController.helpers.js_clean(item.detail) %&gt;
  </code></pre>
  
  <p>but would rather just have:</p>
  
  <pre><code>&lt;%=raw js_clean(item.detail) %&gt;
  </code></pre>