Gregory's ServerLeave it to me to break it. ;)
The page does well up to 42 ascii characters, but any more than that (checked up to 45) it lists the length as 37 and decodes the first two letters that it shows incorrectly. It's when it goes from version 3 to version 4.
Thank you for this! You gave me a good start. Now I have to dig more deeply into it.