Screen Flashing

People are reporting to me that they're noticing "screen flashing" when they
navigate my webpages. Indeed, I've verified this myself by:

o  using Firefox, IE7, and Opera under Windows Vista
o  using Firefox and IE6 under Windows XP
o  using Firefox and Safari under OS X
o  using Firefox under Ubuntu Linux

(Interestingly, I don't see screen flashing using Safari under Windows
Vista.)

Anyway, can anyone tell me why this is happening? Visit:

http://www.goodsexnetwork.com/

(One Smalltalker asked me whether I was using Scriptaculous. AFAIK, Seaside
uses Scriptaculous automatically without my intervention.)

Thanks,
Richard

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I can't reproduce on Firefox with Ubuntu Linux.

2007/8/7, Richard K Eng <[hidden email]>:

--
Damien Cassou
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> > People are reporting to me that they're noticing "screen flashing" when they
> > navigate my webpages. Indeed, I've verified this myself by:

I guess that comes from your use of frames. When browsing the site
directly trough http://74.102.141.248/goodsexnetwork I don't see any
screen flashing.

Lukas

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Lukas Renggli
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I've discovered the problem. It has nothing to do with the app. It's the
fault of Apache!!!

Apparently, reverse proxying using the following httpd.conf is responsible
for the screen flashing:

LoadModule  proxy_module  /usr/lib/apache2/modules/mod_proxy.so
LoadModule  proxy_http_module  /usr/lib/apache2/modules/mod_proxy_http.so
LoadModule  rewrite_module  /usr/lib/apache2/modules/mod_rewrite.so

NameVirtualHost *
<VirtualHost *>
RewriteEngine     on
ProxyRequests     off
DocumentRoot      /var/www
ProxyPass  /goodsexnetwork  http://localhost:9090/seaside/goodsexnetwork
ProxyPassReverse /goodsexnetwork http://localhost:9090/seaside/goodsexnetwor
k
ProxyPass         /goodsexspace   http://localhost:9090/seaside/goodsexspace
ProxyPassReverse  /goodsexspace   http://localhost:9090/seaside/goodsexspace
RewriteRule   ^/$   http://localhost:9090/seaside/goodsexnetwork/$1 [P,L]
</VirtualHost>


To prove that it's the reverse proxying that's the culprit, simply visit the
URL to which www.goodsexnetwork.com has been forwarded:

http://74.102.141.248/goodsexnetwork/


So I know WHO's at fault, but I still don't know WHY.

Richard


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Lukas Renggli wrote:

I guess that comes from your use of frames. When browsing the site
directly trough http://74.102.141.248/goodsexnetwork I don't see any
screen flashing.

---------

Yes, I noticed the use of frames, too. But I didn¹t put those frames there!
Who did??? Apache? WHY?

Regards,
Richard


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> Yes, I noticed the use of frames, too. But I didn¹t put those frames there!
> Who did??? Apache? WHY?

Certainly not Seaside ;-)

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Lukas Renggli
http://www.lukas-renggli.ch
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