[rosa-users] ROSA-Applet reloading every request...

[Stefan F. Keller]

Thanks again - I have to check how to generate non-PNG from our linux
installation in order got get to work the smaller sized applet...

Regarding caching you are right - my browsers (firefox + IE) do no
chaching at all...
Obviously one of my servers - apache or mapserver?? - instruct the
client *not* to chache anything...! "wget -S http://tinyurl.com/9o3nn"
reports:
...
 7 Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
 8 Pragma: no-cache

Any experiences here? - Obviously one can do some tune up here too...
-- Stefan


2005/8/15, Daniel Morissette <dmorissette at dmsolutions.ca>:
> Stefan F. Keller wrote:
> >
> > Every request a user does (Zoom/Pan/etc.) mapserver - and therefore my
> > browser too - responds with a complete HTML reload - including the
> > 300K ROSA applet.. which takes time.
> >
> > Technically seen, it would be more efficient when there would be a
> > direct protocol between the client applet an the server
> 
> 
> It could be more efficient to not reload the page everytime, but that's
> not the way ROSA works: at the time it was designed as an extension for
> the <INPUT TYPE=IMAGE> form parameter which submits the page everytime.
> That was back in 1999-2000 when JavaScript was not as useable as it is
> today.
> 
> Today there are other options if you don't want to submit the page
> everytime, there's at least ka-Map (http://ka-map.maptools.org/) and
> MapBuilder (http://mapbuilder.sourceforge.net/). I'm sure there are many
> others but I can't think of them right now.
> 
> >  (or at leas a
> > more smaller sized applet).
> >
> 
> Note that once the applet has been downloaded once, it should stay in
> your browser's cache, so you pay the price for the 300k download only
> once. Also, the version of the applet without PNG support is quite a bit
> smaller, around 120k if I remember correctly.
> 
> Daniel
> --
> ------------------------------------------------------------
>   Daniel Morissette               dmorissette at dmsolutions.ca
>   DM Solutions Group              http://www.dmsolutions.ca/
> ------------------------------------------------------------
>