Hi, I'm afraid maybe my question was not clear. I can send the 304s with no problem. My trouble is that I cannot get IE8 or Chrome9(dev) to send the If-None-Match header in the request.
I've since installed Opera and Safari. Opera, like Firefox, performs well and sends the If-None-Match. Safari performs like Chrome and IE and doesn't send it. Is there some magical combination of other response headers required (last modified, cache control, expires??) necessecary to get IE and Chrome to save the etag and issue conditional requests? You mentioned Chrome 6 worked as expected. I'll have to try installing an older version. I don't have the no-cache or expires trouble because I'm specifically sending 'Cache-Control: public, must- revalidate' and removing the expires header. Thanks, Steve On Nov 3, 8:16 pm, 风笑雪 <[email protected]> wrote: > Just simply compare Etag and If-None-Match,then send 304 status when > matching, it works on Chrome 6, Firefox 3.5 and Opera > 10.5:http://bitbucket.org/keakon/yui/src/tip/yui.py#cl-820 > > For those browsers which have no affect at all, you can try deploy to > app server since the dev server always send "Cache-Control: no-cache" > and "Expires: Fri, 01 Jan 1990 00:00:00 GMT" to prevent cache. > > ---------- > keakon > > > > > > > > On Thu, Nov 4, 2010 at 8:26 AM, Steve <[email protected]> wrote: > > Can anyone tell me what the secret is to get Google Chrome (9/dev) or > > IE8 to send If-None-Match headers? I've gone to a lot of work to > > organize my application so it sends ETags and short-circuits doing > > work when an etag matches the "If-None-Match" header. Firefox works > > beautifully and I send out lots of cheap 304s. But, I'm getting bald > > spots from ripping my hair out trying to get Chrome or IE to do the > > same. > > > Has anybody conquered this before? > > > Thanks! > > > Steve > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group > > athttp://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
