| Subject: | Re: Question about ETag header? | |
|---|---|---|
| From: | Igor Sysoev (is-G...@public.gmane.org) | |
| Date: | Dec 16, 2006 11:01:05 am | |
| List: | ru.sysoev.nginx | |
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| From | Sent On | Attachments |
|---|---|---|
| Aleksandar Lazic | Dec 15, 2006 12:47 am | |
| Ezra Zygmuntowicz | Dec 15, 2006 12:32 pm | |
| Igor Sysoev | Dec 15, 2006 1:40 pm | |
| Aleksandar Lazic | Dec 15, 2006 2:10 pm | |
| Igor Sysoev | Dec 15, 2006 11:27 pm | |
| Aleksandar Lazic | Dec 16, 2006 10:13 am | |
| Igor Sysoev | Dec 16, 2006 11:01 am |
| Subject: | Re: Question about ETag header? | |
|---|---|---|
| From: | Igor Sysoev (is-G...@public.gmane.org) | |
| Date: | Dec 16, 2006 11:01:05 am | |
| List: | ru.sysoev.nginx | |
On Sat, 16 Dec 2006, Aleksandar Lazic wrote:
On Sam 16.12.2006 10:27, Igor Sysoev wrote:
On Fri, 15 Dec 2006, Aleksandar Lazic wrote:
I'am not sure if it's good or bad also how helpfull it really is, maybe someone on the list could help to understand this ;-)?!
I saw that browsers and cache proxies use Last-Modified as tag but not as time value. If they want to revalidate response, they send If-Modified-Since with the same value as they have received. MSIE adds ", length=XXXX" string. nginx gets time in seconds from IMS header and does IMS == LM comparsion, but not "IMS <= LM" comparsion to return 304.
Sorry but, the ETag is a addon for the LM and IMS as I have right understand the rfc2616.
Yes, it's addition, but I do not see any ETag benefits over LM for static files.
Igor Sysoev http://sysoev.ru/en/

