[Opensymphony-oscache] Re: Got "HTTP/1.1 304 Not Modified" When Press Ctrl + F5

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Hi,

Ctrl+F5 is hard refresh - browser will try to get new copies of the all the images, html, etc.. of the page. So, I think oscache should return cache copy of the image, instead of returning HTTP 304. If I do hard-refresh, image will remain broken link in firefox until the cache is expired.

I attached the HTTP header text of normal refresh vs hard refresh in both firefox and IE. It can be easily see that the hard refresh will always sent "Cache-Control: no-cache". I think OsCache shouldn't return HTTP 304 when "Cache-Control: no-cache" is in the request header.

Please correct me if I'm wrong.

Thanks for your lightspeed reply!! Sorry for double posting.
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Content-Type: text/plain; name="Firefox - normal refresh.txt"; 
	charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="Firefox - normal refresh.txt"

http://localhost:8080/onthepitch.jsp

GET /onthepitch.jsp HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
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=BE99F90C22BD6E875600A7024125B9CD
Cache-Control: max-age=0

HTTP/1.x 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Tue, 05 Dec 2006 07:39:14 GMT
----------------------------------------------------------
http://localhost:8080/getThumbnail.do?id=1

GET /getThumbnail.do?id=1 HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://localhost:8080/onthepitch.jsp
Cookie: JSESSIONID=BE99F90C22BD6E875600A7024125B9CD
Cache-Control: max-age=0

HTTP/1.x 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:39:18 GMT
----------------------------------------------------------
http://localhost:8080/getThumbnail.do?id=6

GET /getThumbnail.do?id=6 HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://localhost:8080/onthepitch.jsp
Cookie: JSESSIONID=BE99F90C22BD6E875600A7024125B9CD
Cache-Control: max-age=0

HTTP/1.x 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:39:18 GMT
----------------------------------------------------------
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Content-Type: text/plain; name="Firefox - hard refresh.txt"; 
	charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="Firefox - hard refresh.txt"

http://localhost:8080/onthepitch.jsp

GET /onthepitch.jsp HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
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=BE99F90C22BD6E875600A7024125B9CD
Pragma: no-cache
Cache-Control: no-cache

HTTP/1.x 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Tue, 05 Dec 2006 07:39:54 GMT
----------------------------------------------------------
http://localhost:8080/getThumbnail.do?id=1

GET /getThumbnail.do?id=1 HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://localhost:8080/onthepitch.jsp
Cookie: JSESSIONID=BE99F90C22BD6E875600A7024125B9CD
Pragma: no-cache
Cache-Control: no-cache

HTTP/1.x 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:39:55 GMT
----------------------------------------------------------
http://localhost:8080/getThumbnail.do?id=6

GET /getThumbnail.do?id=6 HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Accept: image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://localhost:8080/onthepitch.jsp
Cookie: JSESSIONID=BE99F90C22BD6E875600A7024125B9CD
Pragma: no-cache
Cache-Control: no-cache

HTTP/1.x 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:39:55 GMT
----------------------------------------------------------
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Content-Type: text/plain; name="IE - normal refresh.txt"; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="IE - normal refresh.txt"

GET /offthepitch.jsp HTTP/1.1
Accept: */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Tue, 05 Dec 2006 07:26:16 GMT

GET /getThumbnail.do?id=2 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:16 GMT

GET /getThumbnail.do?id=3 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:17 GMT

GET /getThumbnail.do?id=4 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:17 GMT
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Content-Type: text/plain; name="IE - hard refresh.txt"; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="IE - hard refresh.txt"

GET /offthepitch.jsp HTTP/1.1
Accept: */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/html;charset=ISO-8859-1
Transfer-Encoding: chunked
Date: Tue, 05 Dec 2006 07:26:46 GMT

GET /getThumbnail.do?id=3 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:48 GMT

GET /getThumbnail.do?id=2 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:48 GMT

GET /getThumbnail.do?id=4 HTTP/1.1
Accept: */*
Referer: http://localhost:8080/offthepitch.jsp
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Host: localhost:8080
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: org.springframework.web.servlet.theme.CookieThemeResolver.THEME=blue; JSESSIONID=0F75323C605DC133AF59DC568D212D45

HTTP/1.1 304 Not Modified
Server: Apache-Coyote/1.1
Date: Tue, 05 Dec 2006 07:26:48 GMT

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