There is a JavaScript error in my rails application!

Question

As the title said, I got a problem! i encountered the "RJS Error:[object error]",the code in my application is page << "#{hidden_print("#{url_for(:controller => 'tables', :action => 'dispatch', :id => id, :pop => true, :print =>true)}")} "

the method hidden_print is

  def hidden_print(url)
  "window.parent.headFrame.document.all.iframe_helper.src = '#{url}';"                                                 
  end

Answer 1

The document.all collection is only supported by Internet Explorer, and only in quirks mode. Use the getElementById method to access the element:

"window.parent.headFrame.document.getElementById('iframe_helper').src = '#{url}';"