toDataURL Base64

[awmartin]

I have a Topaz signature pad that i am trying to incorporate into my Genie/PUI application.
Right now the process goes something like this....
My screen has in iframe that links to the Topaz html which collects the signature.
I have used the canvas to translate toDataURL and then use that to populate an image that is shown on my screen.
That all works great. I have the Base64 string which I am passing back to my RPG program which takes that, and uses Base64_decode to get a new string that can be saves as an image to the IFS.
Confused yet? Haha
So this process works about 1/2 of the time. The image on the IFS is correct and life is good.
However, the other 1/2 of the time, the image on the IFS is a blank blue box.
Does anyone know what may be causing this? The image on my screen looks just fine and when i capture the Base64 and use online translators, it looks ok there too.
Thanks for any ideas!
Wendy

[Scott Klement]

All I can guess is that something is wrong in the image file.

Its hard to guess what might be wrong with the code as I have never seen it.