title: GWT RequestBuilder problem
body: <p>I'm trying to instert an jsp in our gwt application. I'm using the request builder for that. Here my code:</p>
  
  <pre><code>String url = "http://localhost:8080/my-spring-example/hello.htm";
  RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, url);
  RequestCallback callback = new RequestCallback() {
   public void onError(Request request, Throwable exception) {
    spring.setHTML("Die Daten konnten nicht geladen werden");
   }
  
   public void onResponseReceived(Request request, Response response) {
    String responseAsText = response.getText();
    if (responseAsText.equals("") || responseAsText == null ){
     spring.setHTML("Der String ist leer");   
    } else {
     spring.setHTML(responseAsText);
    }
   }
  };
  
  try {
   rb.sendRequest(null, callback);
  } catch (RequestException e) {
   e.printStackTrace();
  }
  </code></pre>
  
  <p>If i call <a href="http://localhost:8080/my-spring-example/hello.htm" rel="nofollow">http://localhost:8080/my-spring-example/hello.htm</a>, the response in firebug is:</p>
  
  <pre><code>&lt;head&gt;&lt;title&gt;Hello :: Spring 3 Application&lt;/title&gt;&lt;/head&gt;
  &lt;body&gt;
   &lt;h1&gt;Hello World, Spring 3.0!&lt;/h1&gt;
   &lt;p&gt;Es gibt 32 Einträge&lt;/p&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>If i make the call over our gwt application, the response in firebug is empty string.</p>
  
  <p>If i i call <a href="http://localhost:8080/my-spring-example/hello.htm" rel="nofollow">http://localhost:8080/my-spring-example/hello.htm</a>, the response in wireshark is:</p>
  
  <pre><code>&lt;head&gt;&lt;title&gt;Hello :: Spring 3 Application&lt;/title&gt;&lt;/head&gt;\n
  &lt;body&gt;\n
  \t&lt;h1&gt;Hello World, Spring 3.0!&lt;/h1&gt;\n
  \t&lt;p&gt;Es gibt 32 Eintr\344ge&lt;/p&gt;\n
  &lt;/body&gt;
  </code></pre>
  
  <p>If i make the call over our gwt application, the response in wireshark is the same:</p>
  
  <pre><code>&lt;head&gt;&lt;title&gt;Hello :: Spring 3 Application&lt;/title&gt;&lt;/head&gt;\n
  &lt;body&gt;\n
  \t&lt;h1&gt;Hello World, Spring 3.0!&lt;/h1&gt;\n
  \t&lt;p&gt;Es gibt 32 Eintr\344ge&lt;/p&gt;\n
  &lt;/body&gt;
  </code></pre>
  
  <p>I can't understand, what is wrong....the call is made correctly, response comes, but something happens, so the gwt client shows only empty string as response. I'm pretty confused....</p>