[TYPO3-dev] strange behaviour requesting pages

[Robert John de Stigter]

Hi all,
 
Could it be that plugins or pages get parsed more than 1 time at a
request. I'm running a self made plugin which does some database
changes. Stupid thing is, it does it two or three times every time I
call the page. I first thought something in my code was doing this but
I've disabled everything and only let the plugin write the current date
and time to a file. And as I thought - this is done two or three times
when the page is requested.
 
I think it has to do with the caching system of typo3 in combination
with different urls. Because if I request the page with a dummy GET
variable, different date and time (2 or 3 seconds difference) are
written to the file three times. Then if I refresh the page. (GET
variable does not change), the date and time get written once!! If I
request the page again with a different value in the get variable the
problem occures again.
 
What could be the problem here? I've excluded that the page gets
forwarded by the browser or any code in the plugin.
 
Greetz,
Robert