Wicket Ajax Tree example loggin IllegalStateException on console
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Key: WICKET-3570
URL: https://issues.apache.org/jira/browse/WICKET-3570
Project: Wicket
Issue Type: Bug
Components: wicket-examples
Affects Versions: 1.5-RC3
Environment: IE 8, can't reproduce on Chrome
Reporter: Pedro Santos
Assignee: Pedro Santos
Priority: Minor
Simply visiting
http://localhost:8080/nested/wicket/bookmarkable/org.apache.wicket.examples.ajax.builtin.tree.SimpleTreePage
on wicket-examples site using IE and selecting a node, triggers
IllegalStateException.
ERROR - RequestCycle - Error during processing error message
java.lang.IllegalStateException: Header was already written to response!
at
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.checkHeader(HeaderBufferingWebResponse.java:62)
at
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.setDateHeader(HeaderBufferingWebResponse.java:131)
at
org.apache.wicket.protocol.http.BufferedWebResponse$SetDateHeaderAction.invoke(BufferedWebResponse.java:241)
at
org.apache.wicket.protocol.http.BufferedWebResponse.writeTo(BufferedWebResponse.java:487)
at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:225)
at
org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139)
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:715)
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:274)
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