Google app engine GAE java服务器无法激活访问控制允许源

我正在尝试将服务器设置为允许跨域脚本，以访问appengine提供的资产：“static.myapp.org”

我将此配置添加到appengine-web.xml中，如中所述

---

有什么想法吗？

关于静态内容的HTTP头被删除了。您似乎正在使用1.6.6

   <static-files>
      <include path="/**.txt" >
        <http-header name="Access-Control-Allow-Origin" value="http://myapp.org" />
      </include>
    </static-files>

Bad configuration: XML error validating /war/WEB-INF/appengine-web.xml against /opt/appengine-java-sdk-1.6.6/docs/appengine-web.xsd
  Caused by: cvc-complex-type.2.2: Element 'include' must have no element [children], and the value must be valid.