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<p class=MsoNormal><span style='color:#1F497D'>I was concerned that any code in
the Web Layout that gets served to the client may have been cached, but that
appears not to be the issue. The two requests was originally an issue in IE6
because IE doesn’t handle the transparency in the PNG image so it would
fail and then send a second request to resolve the problem.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>You can also just look at the Access.log
for MapGuide and you will either see 1 or 2 RenderDynamicOverlay requests if I
am not mistaken.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Dave<o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapguide-users-bounces@lists.osgeo.org
[mailto:mapguide-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Haris
Kurtagic<br>
<b>Sent:</b> Friday, October 31, 2008 4:18 PM<br>
<b>To:</b> MapGuide Users Mail List<br>
<b>Subject:</b> RE: [mapguide-users] RE: two requests<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I checked and It was already set
to ”Every time I visit the webpage”. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Although I don’t see how
that would be reason for generating two requests to MG.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I also tried to find example of
transparent PNG and I viewed it in IE 7. I used Fiddler and I can see only one
request send for that png while when accessing MapGuide site I can see two
requests send to MG.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Haris<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapguide-users-bounces@lists.osgeo.org [mailto:mapguide-users-bounces@lists.osgeo.org]
<b>On Behalf Of </b>Dave Wilson<br>
<b>Sent:</b> Friday, October 31, 2008 10:19 PM<br>
<b>To:</b> MapGuide Users Mail List<br>
<b>Subject:</b> RE: [mapguide-users] RE: two requests<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Check to ensure your browsers
are not caching stuff.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Tools\Internet
Options\General\Browsing History - Settings\”Every time I visit the
webpage”<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Dave<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapguide-users-bounces@lists.osgeo.org
[mailto:mapguide-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Haris
Kurtagic<br>
<b>Sent:</b> Friday, October 31, 2008 3:38 PM<br>
<b>To:</b> MapGuide Users Mail List<br>
<b>Subject:</b> RE: [mapguide-users] RE: two requests<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I believe all same windows
updates are done on all machines.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I checked also that same IE 7
version is installed 7.0.5730.13 on all machines.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Haris<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapguide-users-bounces@lists.osgeo.org
[mailto:mapguide-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Dave Wilson<br>
<b>Sent:</b> Friday, October 31, 2008 10:09 PM<br>
<b>To:</b> MapGuide Users Mail List<br>
<b>Subject:</b> [mapguide-users] RE: two requests<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I don’t know what the
cause of the behavior could be, but is it possible that the same Windows
Updates have not been applied to the machines sending 2 requests?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Dave<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapguide-users-bounces@lists.osgeo.org
[mailto:mapguide-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Haris
Kurtagic<br>
<b>Sent:</b> Friday, October 31, 2008 3:23 PM<br>
<b>To:</b> MapGuide Users Mail List<br>
<b>Subject:</b> [mapguide-users] two requests<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>In Autodesk
MapGuide Enterprise Update 1 Readme, I found this interesting:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>“”
FDO Oracle trace showed two sets of queries for a single layer when there<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>should
have been only one. Web browsers were sending a second render<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>map
request because of PNG transparency issues with the map image.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>Internet
Explorer 7, Firefox 2 and Firefox 3 now only send one request,<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>improving
performance. Internet Explorer 6 and Safari 3 still send two<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-family:"Arial","sans-serif"'>requests
to render the map, because they do not properly support PNG<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>transparency.”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I noticed
that ajax viewer on one of my PCs is sending two requests to Mapguide 2.0.2.
even when I am using IE 7.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>So it makes
map rendering twice slower as it should be.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>FF 2 sends
only one request from that machine.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>From couple
of other PCs, IE 7 is sending only one request.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Is this only
PNG transparency issue or there are some other issues?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Haris<o:p></o:p></span></p>
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