Re: onFailure in AsyncCallback only called on timeout

Thanks Alfredo.

That makes it a lot clearer. I see why this is not working now. I
guess we have to either start calling the json service from the server
side (avoiding json-p) or we have to modify the service so that it
always returns the exception in a 200 response.

Cheers
Fred

On 26 Jan, 19:44, Alfredo Quiroga-Villamil <laww...@gmail.com> wrote:
> Unfortunately, unless I am mistaken, there is no way to tell if a script
> tag failed to load or not and why it failed in this case. So all you are
> getting is a timeout exception letting you know that something went wrong.
>
> One approach for JSONP, is to ensure on the server side that all exceptions
> are caught. In the response message to the jsonp request, you can then send
> the status code or the exception message, but the actual http response code
> to the jsonp request must be a 200.
>
> Hope this helps.
>
> Regards,
>
> Alfredo
>
>
>
>
>
>
>
>
>
> On Thu, Jan 26, 2012 at 10:12 AM, Fred <fred.dahlb...@gmail.com> wrote:
> > Hi,
>
> > I'm trying to understand when the onFailure method of AsyncCallback is
> > called. Even when I get for example a HTTP 500 response the function
> > is never called.
>
> > I've added a more specific question to Stackoverflow:
>
> >http://stackoverflow.com/questions/9019123/in-gwt-when-is-the-asyncca...
>
> > Kind Regards
> > Fredrik Dahlberg
>
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> --
> Alfredo Quiroga-Villamil
>
> AOL/Yahoo/Gmail/MSN IM:  lawwton

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