[wp-trac] Re: [WordPress Trac] #9281: use
Last-Modified/If-Modified-Since
WordPress Trac
wp-trac at lists.automattic.com
Sat Mar 7 23:37:21 GMT 2009
#9281: use Last-Modified/If-Modified-Since
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Reporter: jidanni | Owner: anonymous
Type: feature request | Status: new
Priority: lowest | Milestone: Future Release
Component: Optimization | Version: 2.7.1
Severity: trivial | Keywords: dev-feedback 2nd-opinion
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Changes (by DD32):
* type: enhancement => feature request
Comment:
> A banner ad rotation shouldn't change a Last-Modified date.
Correct
> But a site notice added to each page might.
Correct.
How is WordPress supposed to know the difference?
Simple, It doesn't, Its content from the theme or a plugin that is
changing, it *doesnt* know if the content has changed, It cant keep a copy
of the output and compare it later, That wouldnt work.
The difference with feeds is that once they've got the feed, they don't
want it again, theres no dynamic content in the feed for them, If an ad is
inserted at the end of each post, they should get the ad that they
originally got, not the latest one upon a refresh (Which mind you, would
also cause duplicate items in their reader.. but thats a different story).
In my opinion: If you want to use 304's for your main page, Then use a
plugin, Or a Caching plugin which ends up removing any dynamic abilities
WP has to start with, which means it -can- then use static content, which
means it does know if it was modified.
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Ticket URL: <http://core.trac.wordpress.org/ticket/9281#comment:3>
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