[Chameleon] Re: IE hangs with drawmap.php

[uli mueller]

Jonathan

I would not use IE either, but some clients do:-(

In the meantime I can give some more infos on the problem:
I can reproduce the crash when I load the same URL twice:
- copy a valid URL to drawmap.php directly to the address bar of IE
 >> image loads
- press F5 to reload the same URL
 >> IE hangs

So normally in a chameleon app every URL should be unique (that is what 
the dummy var is for). However I suppose IE does something nobody knows 
about, e.g. call the URL more than once.

The output format of the map seems not to be the cause of all that, as I 
guessed before.

I have built a small test application to reproduce the bug:
http://ex1.ruf.uni-freiburg.de/crashie/obsrv.php

I will also have to check if maybe apache blocks repeated calls?

Uli


Jonathon Coombes wrote:
> 
> On 22/02/2006, at 1:55 AM, uli mueller wrote:
> 
>> Nobody has any hint? This is a real blocker for us!
>>
>> We tested the whole thing on some more machines and found some that  
>> did not show the problem - although the version of IE was identical.
>>
>> Uli
>>
>> uli mueller wrote:
>>
>>> Hi All
>>> Can anybody tell why Internet Explorer (version 5 and 6) hangs  with 
>>> some images produced from drawmap.php?
>>> With Firefox everything is fine. However when I call the same URL  in 
>>> IE the browser hangs completely, consuming most of my CPU and  
>>> freezing the whole system after some minutes!
>>> This happens only at certain map extents or scales. I tried  changing 
>>> the output format options in chameleon.xml as well as in  the 
>>> mapfile. The only effect was that other map extents caused the  
>>> problem. I found no configuration that worked for all situations.
>>> I have copied and posted some of the images produced from  
>>> drawmap.php below. However when I call the saved images with their  
>>> extension even IE manages to display them.
> 
> 
> Hi Uli,
> 
> The only trouble I have seen with IE was to do with sessions and  using 
> IFRAME's.
> The two don't mix very well and you have to be extra careful in this  
> situation. Otherwise
> I can't help you as I don't use IE! (or MS Windows) :)
> 
> Regards
> Jonathon
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> 


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