[talk-au] ISP caching problems with JOSM ?

Steer isteer at iinet.net.au
Fri Sep 13 07:09:31 UTC 2013

Unfortunately, I was already set for "User the default OSM server URL".

However, I think I have the solution - don't download **exactly** the same
area each time (left selected from the last edit session).  If the request
is slightly different, the ISP won't drag something out of the cache.

Seems to work on the basis of 1 test !

Thanks for your help


-----Original Message-----
From: grant at firefishy.com [mailto:grant at firefishy.com] On Behalf Of Grant
Sent: Thursday, 12 September 2013 9:15 PM
To: Steer
Cc: talk-au
Subject: Re: [talk-au] ISP caching problems with JOSM ?

Hi Ian,

The api.openstreetmap.org map data servers send "no-cache" headers and
proxy/caches should therefore NOT be caching the results...
But some ISPs are too aggressive with their caching.

Make sure JOSM is set to the default OSM server (there are 3rd party caching
API servers available):
JOSM -> Edit -> Preferences (shortcut: F12) -> Connection Settings (World
Icon) -> make sure: "User the default OSM server URL" is checked.

I am happy to help diagnose the error with you.


On 12 September 2013 13:01, Steer <isteer at iinet.net.au> wrote:
> I'm wondering if I'm striking caching problems with my ISP or my PC.  
> I make changes and upload them with no error messages and close JOSM.  
> I re-open the next day, and my changes aren't there - but they are 
> present in the "slippy map".  I re-do them and upload them and get a 
> conflict saying the server version is newer than mine.  I can close 
> JOSM, re-open and re-download, and the server version and my version don't
> I have googled this problem, but it was all a bit above my head.  Does 
> anyone have a solution for this problem they can describe in simple terms
> J
> thanks
> Ian
> _______________________________________________
> Talk-au mailing list
> Talk-au at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-au

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