Thx for the pointer. The Expenses/GAE example overwrites createCallback() to deal with Response.SC_UNAUTHORIZED responses.
I guess I will have to overwrite *configureRequestBuilder(RequestBuilder builder)* and add the SESSIONID in the header of each request. protected void configureRequestBuilder(RequestBuilder builder) { builder.setHeader(CONSTANT_SESSION_ID, getCurrentUserSessionId()); super.configureRequestBuilder(builder); } Koen -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/PmeSgruN0Z4J. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.