[wp-hackers] Sending a Last-Modified header with HTML pages

[Robin Adrianse]

Because sometimes extra lines/whitespace sneak in there either from a bad
text editor or in the progress of uploading, and it's no good to have a
pageful of errors. Maybe switch this to something more flexible -- control
it with error_reporting() rather than suppressing it completely?

On 11/14/06, Dave W <dabbaking at gmail.com> wrote:
>
> Why is WP suppressing those header functions? If there are errors, no one
> is
> gonna know and unsent headers might be a problem.
>
> On 11/14/06, Brian Layman <Brian at thecodecave.com> wrote:
> >
> > > We're currently preparing to convert our blog to WordPress and
> > > discovered that it isn't emitting Last-Modified headers for page
> views.
> > > Can anyone provide some context on why WP has this behavior?
> > The quick answer would be: Plugins and themes.
> >
> > In a general release, there are way to many ways for any particular WP
> > page
> > to change.
> >
> > Plugins, user settings and theme switchers all work against WP
> delivering
> > a
> > standard page.
> >
> > However, WP DOES use Last-Modified for all feeds.  There even two
> > detection
> > methods, for the last modified date, based upon whether or not the feed
> > includes comments.
> >
> > If you take a look at the function Send_Headers with in
> > wp-includes/classes.php, you'll see the support for Last-Modified.
> >
> > If your page is really static, (and looking at your blog it is) you can
> > easily fix the problem by MOVING (not copying) this code:
> >        // We're showing a feed, so WP is indeed the only thing that last
> > changed
> >        if ( $this->query_vars['withcomments'] )
> >            $wp_last_modified = mysql2date('D, d M Y H:i:s',
> > get_lastcommentmodified('GMT'), 0).' GMT';
> >        else
> >            $wp_last_modified = mysql2date('D, d M Y H:i:s',
> > get_lastpostmodified('GMT'), 0).' GMT';
> >        $wp_etag = '"' . md5($wp_last_modified) . '"';
> >        @header("Last-Modified: $wp_last_modified");
> >        @header("ETag: $wp_etag");
> >
> > up right after the first line:
> > @header('X-Pingback: '. get_bloginfo('pingback_url'));
> >
> > Another question might be, why don't we have a hook right there in
> > send_header.  It would be a good place for one.  Is there an equivelent
> > hook
> > somewhere else?
> >
> > _______________________________________________
> > Brian Layman
> > www.TheCodeCave.com
> >
> >
> > _______________________________________________
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> > wp-hackers at lists.automattic.com
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> >
>
>
>
> --
> Dave W
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>