rails/rails

<%
  clean_params = params_valid? ? @request.filtered_parameters.clone : {}
  clean_params.delete("action")
  clean_params.delete("controller")

  request_dump = clean_params.empty? ? 'None' : clean_params.inspect.gsub(',', ",\n")

  def debug_hash(object)
    object.to_hash.sort_by { |k, _| k.to_s }.map { |k, v| "#{k}: #{v.inspect rescue $!.message}" }.join("\n")
  end unless self.class.method_defined?(:debug_hash)
%>

Request parameters
<%= request_dump %>

Session dump
<%= debug_hash @request.session %>

Env dump
<%= debug_hash @request.env.slice(*@request.class::ENV_METHODS) %>

Response headers
<%= defined?(@response) ? @response.headers.inspect.gsub(',', ",\n") : 'None' %>