Hi, this is interesting. As you see in my example (i put it again below), tomcat itself delivers the Last-Modified (Do, 17 Dez 2009 11:11:29 GMT) in a different locale (german) as the Date Header (Thu, 17 Dec 2009 11:24:53 GMT).
So maybe the simplest way is to prevent tomcat from putting the "Last-Modified" Header into the response. Do I have to use a Filter to do so or can this be done by another way (by configuration, ...)? Best regards, Abid --> Successful Request: Host: localhost:8080 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6 (.NET CLR 3.5.30729) Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: de-de,en-us;q=0.8,de;q=0.6,en;q=0.4,fr-fr;q=0.2 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive Cookie: JSESSIONID=262FAFFC220AF50656BC67C1C1DD1331 Cache-Control: max-age=0 --> Response: Server: Apache-Coyote/1.1 Last-Modified: Do, 17 Dez 2009 11:11:29 GMT Content-Type: text/javascript Transfer-Encoding: chunked Date: Thu, 17 Dec 2009 11:24:53 GMT -----Ursprüngliche Nachricht----- Von: Looijmans, Mike [mailto:mike.looijm...@oce.com] Gesendet: Donnerstag, 17. Dezember 2009 15:03 An: Tomcat Users List Betreff: RE: RE: Ignore http header if-modified-since This header is invalid: Last-Modified: Do, 17 Dez 2009 11:11:29 GMT This is not according to spec, "Dez" should be "Dec". Maybe tomcat chokes on it. > -----Original Message----- > From: Abid Hussain [mailto:abid.huss...@dilax.com] > Sent: donderdag 17 december 2009 12:26 > To: users > Subject: AW: RE: Ignore http header if-modified-since > > Hallo, > > unfortunately it is a 404. And the 404 is only delivered when the > request header contains "if-modified-since". If not the request is > respondec correctly. This behaviour is reproducable. > > Below you find an example of failed and successful request. > The GET URL is in both cases > http://localhost:8080/mywebapp/faces/static/META-INF/progressb ar/script.js > > --> Failed Request (means tomcat responds with 404): > Host: localhost:8080 > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.6) > Gecko/20091201 Firefox/3.5.6 (.NET CLR 3.5.30729) > Accept: > text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 > Accept-Language: de-de,en-us;q=0.8,de;q=0.6,en;q=0.4,fr-fr;q=0.2 > Accept-Encoding: gzip,deflate > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 > Keep-Alive: 300 > Connection: keep-alive > Cookie: JSESSIONID=262FAFFC220AF50656BC67C1C1DD1331 > If-Modified-Since: Do, 17 Dez 2009 11:11:29 GMT > Cache-Control: max-age=0 > --> Response: > Server: Apache-Coyote/1.1 > Content-Type: text/html > Content-Length: 1093 > Date: Thu, 17 Dec 2009 11:24:38 GMT > > --> Successful: > Host: localhost:8080 > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.6) > Gecko/20091201 Firefox/3.5.6 (.NET CLR 3.5.30729) > Accept: > text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 > Accept-Language: de-de,en-us;q=0.8,de;q=0.6,en;q=0.4,fr-fr;q=0.2 > Accept-Encoding: gzip,deflate > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 > Keep-Alive: 300 > Connection: keep-alive > Cookie: JSESSIONID=262FAFFC220AF50656BC67C1C1DD1331 > Cache-Control: max-age=0 > --> Response: > Server: Apache-Coyote/1.1 > Last-Modified: Do, 17 Dez 2009 11:11:29 GMT > Content-Type: text/javascript > Transfer-Encoding: chunked > Date: Thu, 17 Dec 2009 11:24:53 GMT > > Does anybody have an explanation for this? > > Best regards, > > Abid > > > -----Ursprüngliche Nachricht----- > Von: Looijmans, Mike [mailto:mike.looijm...@oce.com] > Gesendet: Mittwoch, 16. Dezember 2009 15:48 > An: Tomcat Users List > Betreff: RE: Ignore http header if-modified-since > > I assume you mean 304 (Not modified) instead of 404 (Not found). > > Simplest I can think of is to NOT put the "last-modified" > header in your response. Then the browser won't send you an > if-modified-since back. > > On the other hand, if you can put a datestamp on the response > - e.g. a file date or by reading it from a DB or so - provide the > proper response and you get client-side caching for > (almost) free, which can seriously reduce load on a server. > > M. > > > -----Original Message----- > > From: Abid Hussain [mailto:abid.huss...@dilax.com] > > Sent: woensdag 16 december 2009 14:11 > > To: users > > Subject: Ignore http header if-modified-since > > > > Hallo, > > > > when processing ajax-requests Tomcat sometimes responds with a 404 > > instead of delivering XML. > > > > This seems to happen when the http header "if-modified-since" > > in the request doesn't somehow contain "the right" value. > At least, if > > > the request doesn't contain this header, tomcat responds > "correctly". > > > > Is it possible to instruct tomcat to simply ignore this > header so that > > > the correct response will be delivered, whatever is > contained in this > > header? > > > > Best regards, > > > > Abid > > (EOF) > > This message and attachment(s) are intended solely for use by the > addressee and may contain information that is privileged, confidential > or otherwise exempt from disclosure under applicable law. > > If you are not the intended recipient or agent thereof responsible for > delivering this message to the intended recipient, you are hereby > notified that any dissemination, distribution or copying of this > communication is strictly prohibited. > > If you have received this communication in error, please notify the > sender immediately by telephone and with a 'reply' message. > > Thank you for your co-operation. > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > This message and attachment(s) are intended solely for use by the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a 'reply' message. Thank you for your co-operation. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
