Take the 2-minute tour ×  I'm sending an HTTP request with
RequestBuilder.send(). I would expect to see successful
responses come back in onResponseReceived(), and errors come
back in onError(). But that's not what I'm seeing. GWT calls
onResponseReceived() regardless of success or failure.  Does
anyone know what I should really expect? Do you have any
information that would help me detect and report errors better?
Here's some sample code:              builder.sendRequest(null,
new RequestCallback() {             public void
onResponseReceived(Request request, Response response) {
Header[] debugHeaders = response.getHeaders();
String debugHeaders1 = response.getHeadersAsString();
int debugStatusCode = response.getStatusCode();
String debugStatusText = response.getStatusText();
String debugText = response.getText();             public void
onError(Request request, Throwable exception) {  I can force an
error on my computer by disa