Examining request objects

error.log

ActionView::Template::Error (can't dump anonymous class Class):
    1: <h3>Rack request env</h3>
    2: <h3>Rails request object</h3>
    3: <pre><%= h(@request_obj.to_yaml).gsub("  ", "&nbsp;").html_safe %></pre>
  app/views/headers/index.html.erb:3:in `_app_views_headers_index_html_erb___1006215901_77896010__270781548'

headers_controller.rb

class HeadersController < ApplicationController
  def index
    @rack_request_env = Rack::Request.new(env)
    @request_obj = request
  end
end

index.html.erb

<h3>Rack request env</h3>
<pre><%= h(@rack_request_env.to_yaml).gsub("  ", "&nbsp;").html_safe %></pre>
<h3>Rails request object</h3>
<pre><%= h(@request_obj.to_yaml).gsub("  ", "&nbsp;").html_safe %></pre>