Chrome and SEVERE: CLIENT EXCEPTION: com.google.gwt.user.client.rpc.StatusCodeException: 0

We start seeing the following stack trace very often with Chrome version 44 on Windows. IE and FF seem to be fine. Any idea? Thanks!

SEVERE: CLIENT EXCEPTION: com.google.gwt.user.client.rpc.StatusCodeException: 0
java.lang.Throwable: 0
at com.google.gwt.core.client.impl.StackTraceCreator$CollectorEmulated.$fillInStackTrace(StackTraceCreator.java:174)
at java.lang.RuntimeException.RuntimeException(RuntimeException.java:508)
at com.google.gwt.user.client.rpc.StatusCodeException.StatusCodeException(StatusCodeException.java:35)
at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.$onResponseReceived(RequestCallbackAdapter.java:209)
at com.google.gwt.http.client.Request.$fireOnResponseReceived(Request.java:258)
at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:412)
at Unknown.anonymous(XMLHttpRequest.java:351)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java:189)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:242)
at Unknown.anonymous(Impl.java:70)

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