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From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: comp.lang.php
Subject: Re: totally WEIRD bug? Firefox caching?
Date: Thu, 20 Mar 2014 10:13:41 +0100
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Am 19.03.2014 18:25, schrieb The Natural Philosopher:

> I have TWO IDENTICAL PHP  FILES.
> 
> They are supposed to display an image got from a database.
> 
> One does. The other does not.
> 
> It persistently tells me the image is corrupted.
> 
> I have even copied one file that works directly over the other. It still 
> doesn't work.
> 
> 
> I have debugged it, got it to output the image to a file and read the 
> file successfully.

What means "read successfully"? Is it a valid image? Is the response
from the server valid?

> Something on firefox now just assumes its corrupted and won't clear its 
> cache. I've shut down firefox, Ive changed its name I've clearded its cache.

Firefox offers to option to clear the cache - no need to shut it down or
to rename the file.

> WTF is going on??

Either Firefox once got an invalid image and cached the response or the
server does not respond the way you think. Maybe a BOM in the PHP file?
This may not be visible in your editor, but it can cause all sort of
problems.


-- 
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de