That is extremely weird, sounds like a session problem. Is their any script between the WMS and client? (php caching or what ever)
2010/5/12 KnutMarius <[email protected]> > I have an application where I use a Google map and a GTileLayer to > draw PNG overlays provided by a WMS server. It works perfectly all the > time, except when I use Internet Explorer 8 and let the application > run in the browser without any activity for more than about 10 > minutes. When I return from the idle period and do some action on the > map (for instance zoom in), some of the tile overlays fail to load. I > look at the traffic of requests in the browser, and usually it is > about 20 tile requests to gmaps and 20 tile requests to my WMS server. > But in the case of zooming after idle time it is only requested about > 8 tiles. Which tiles are loaded and which tiles are not seems to be > random. The issue disappears if I zoom again. It does only seems to > affect the first thing I do when returning from an idle period. > > To me this seems to be some kind of timeout (or possibly cache?) > issue, but I can't quite figure out why a timeout would make _some_ of > the tiles load. Also I was surprised to see that the requests for the > missing tiles were not run at all. At first I figured that it must be > the server that is not delivering what it is supposed to do, but now > it seems this is a client-side issue since the missing tiles are never > requested. > > In my javascript code I have overridden the getTileUrl() method of the > GTileLayer object in order to generate the correct request URL for > each tile. I have debugged out the URLs, and it seems that all of them > are generated properly (meaning that Google runs the method for all > the 20 tiles). > > So does it make any sense that only some of these URLs are actually > run? I have tried to test this in both IE8, Firefox 4 and Chrome 4, > and so far I have only been able to reproduce the issue in IE8. > > All hints and help will be appreciated! > > -- > You received this message because you are subscribed to the Google Groups > "Google Maps API" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-maps-api%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-maps-api?hl=en. > > -- Bjorn Brala ---------------- www.GeoStart.nl/english/ - Google maps - Swis Webdesign www.twitter.com/bbrala -- You received this message because you are subscribed to the Google Groups "Google Maps API" 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-maps-api?hl=en.
