title: What is "ExternalInterface escapes strings using JSON conventions" in the new flash player 14?
body: <p>There's an error when I use ExternalInterface as below:</p>
  
  <blockquote>
    <p>WARNING: For content targeting Flash Player version 14 or higher,
    ExternalInterface escapes strings using JSON conventions. To maintain
    compatibility, content published to earlier Flash Player versions
    continues to use the legacy escaping behavior.</p>
  </blockquote>
  
  <p>What should I do to prevent the warning to show up and what's "legacy escaping" that I should use instead of "JSON convention"?</p>