Hello I do some further analysis in this problem and got following result:
Precondition: The filter manipulates the HTTP header when returning a static resource (e.g. image). HTTP 200 In case of a HTTP 200 (OK) result the header is not added when the doFilter method is like following: .... filterChain.doFilter(request, response); response.setHeader(name, value); .... In contrast to it works when the code is like following: .... response.setHeader(name, value); filterChain.doFilter(request, response); .... In other words: When returning a HTTP 200 (OK) I must set the header before forwarding the request to the next filter. HTTP 304 In this case it doesn't mention whether setting the header is before or after forwarding the request. Any comments? Jürgen Dufner ----------------------------------------- Diese E-Mail enthaelt vertrauliche oder rechtlich geschuetzte Informationen. Wenn Sie nicht der beabsichtigte Empfaenger sind, informieren Sie bitte sofort den Absender und loeschen Sie diese E-Mail. Das unbefugte Kopieren dieser E-Mail oder die unbefugte Weitergabe der enthaltenen Informationen ist nicht gestattet. The information contained in this message is confidential or protected by law. If you are not the intended recipient, please contact the sender and delete this message. Any unauthorised copying of this message or unauthorised distribution of the information contained herein is prohibited. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]