ActionController::DoubleRenderError in Controls/itemsController#update Can only render or redirect

responds_to_parent do

render :update do |page|

page << “tb_remove”

item_link = params[:controller].eql?(“compliance_items”) ? edit_compliance_compliance_item_path(master, @master_item) : edit_controls_item_path(@master_item)

page.redirect_to(item_link + “?token=#{params[:token]}”)

end

end

Hi in the above code I am gettign double render error(subject line is the error )… can anybody please help?