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?