Re: how to test GWT app through a proxy

MyDataService_Proxy is generated by GWT and you can see the generated files by adding "-gen <folder>" to your app's Eclipse run configuration.

The exception you see is thrown in RemoteServiceProxy.doInvoke(...) and simply wraps a possible RequestException. These RequestExceptions can be thrown by RequestBuilder.doSend(..) and are wrappers for JavaScriptExceptions that can be thrown by the browser if it can not do an ajax request using XMLHttpRequest.

All these exceptions are chained together so you should log the whole stack trace to get some more information.

I don't think its an issue in GWT-RPC. Its just that your customer's browser sometimes can't establish a connection to your server through a proxy. Maybe you can ask them to look through their proxy log files to see if something went wrong.

-- J.

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