[Zope] RE: zope/style sheets
dale w lance
dale.w.lance@mail.sprint.com
Wed, 2 Feb 2000 13:57:38 -0600
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Ok, so how do we do a temporary redirect?
Is this a chicken and egg problem?
transparent caches wont fix this because no one uses it, no one uses
it because transparent caches don't support it.
signed,
clueless newbie in zopeland
> -----Original Message-----
---------------------SNIP ------------------
> These caches will cache the
> first document that it gets
> a request for, and then serve it for all subsequent requests.
> This means that if a
> 3.0 browser grabs this page first, all subsequent 4.0
> browsers will get the non
> stylesheet page. This is bad. There are mechanisms built
> into http/1.1 (netscape
> isn't there yet, and I don't know about Opera) that allow a
> server to mark a page as
> varying on a particular header (Vary: user-agent, or
> something similar), which should
> cause a cache to cache different copies of the object for
> each user-agent request that
> it sees. However, most caches ignore this command, since few
> authors do this anymnore
> (they learned the hard way). In general, it is best to
> detect css support in
> javascript, or design pages that work with or wothou CSS
> support. In other instances,
> if you must do a detection, get the results and then issue a
> redirect to the correct
> page (make sure it is a temporary redirect, not a permanent
> one, since the permanent
> redirect is considered a cachable object in most caches).
>
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