CFImage Captcha

Question

When using the CFIMAGE captcha function, I am getting a
broken image. The source code reads as this:
<img
src="/CFFileServlet/_cf_image/_cfimg892407289798721295.png">
Although I get no coldfusion errors and the page loads fine,
the image path is not found.
Why is this failing to load? Is it a mapping issue? And how
is this mapped?

Answer 1

Hi Oguz,
Here is the code:
<cfimage action="captcha" text='blah" overwrite="yes"
height='"75" width="300">
When the page renders this is the source
<img
src="/CFFileServlet/_cf_captcha/_captcha_img6225449526107627875.png"
alt="BS4H6D" height="75" width="300" />
If we try to use the destination attribute and map to our
images folder like this:
<cfimage action="captcha" text='blah" overwrite="yes"
destination="/images/picture.png" height='"75" width="300">
We get this when the page renders:
coldfusion.image.ImageWriter$ImageWritingException: An
exception occurred while trying to write the image.
However,
If we use this code:
<cfimage action="captcha" text='blah" overwrite="yes"
destination="picture.png" height='"75" width="300">
Then the image loads fine, but this is a waste since we have
no control over where to dump the photo. It creates the photo where
ever the cfimage fucntion is called and we are using a CFC to do
that so it will not be adequate.
Any ideas?