Are you saying that not all GAE servers running in the Google data
center support If-Modified-Since? Can you elaborate a bit more? The
Java app was deployed to GAE data center which I assume is running the
latest 1.3.1 which claims to support conditional Get.
On Mar 15, 6:15 pm, Alkis Evlogimenos ('Αλκης Ευλογημένος)
<[email protected]> wrote:
> With server I mean the server you are fetching pages from. That server might
> not have support for If-Modified-Since.
>
> - alkis
>
> 2010/3/16 JC <[email protected]>
>
>
>
> > Thanks for the prompt reply!
>
> > I don't quite understand what you meant by server not supporting it.
> > It is running against central GAE server, not my local development
> > server.
>
> > As for the date format, This is the dump of the HTTP header through a
> > network sniffer as follow.. It seems to be conforming to HTTP spec. Do
> > you see anything wrong?
>
> > GET /ClientBin/oob.xap HTTP/1.1
> > If-Modified-Since: Tue, 16 Mar 2010 00:28:17 GMT
> > User-Agent: Silverlight
>
> > Thanks,
>
> > On Mar 15, 2:22 pm, Alkis Evlogimenos ('Αλκης Ευλογημένος)
> > <[email protected]> wrote:
> > > If-Modified-Since works in GAE. Either the server you are hitting does
> > not
> > > support it, or you are sending it a timestamp it doesn't understand.
>
> > > - alkis
>
> > > On Mon, Mar 15, 2010 at 6:28 PM, JC <[email protected]> wrote:
> > > > GAE 1.3.1 for Java includes a fix (issue 575) to support conditional
> > > > get for static files. I have tried sending If-Modified-Since Get
> > > > header to retrieve a static file from GAE, It always returns 200 (with
> > > > full payload) instead of 304 (unmodified) even though the static file
> > > > hasn't been changed for a while. I have cleared my browser cache so
> > > > that the timestamp in the If-Modified-Since is current timestamp. It
> > > > doesn't seem to work. Has anyone used If-Modified-Since on 1.3.1 with
> > > > success?
>
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