Blank page after ajax4jsf event

[philipwestlake]

I am experiencing an intermittent problem where a blank page is returned after an event triggers an ajax submit, for example when I check a checkbox that is defined with

<a4j:support event="onclick" action="#{...}" reRender="code" requestDelay="1000" eventsQueue="eventq" ignoreDupResponses="true"/>

The application is running in a Tomcat 6 server. This is an intermittent problem which seems to only occur when the app is deployed to a remote server. When the client is local to the server, I don't see the problem.

Does anyone know what could be the problem

Thanks.

[sergeysmirnov]

you need to show more code here. The raw ideas - Ajax and non-Ajax request at the same time and server side exception during the Ajax request that followed with non-Ajax response.