Oh, the reason it worked for me is because I copied the URL as the forum detected it.. everything BEFORE the pipe symbol. I'm sure pipes aren't meant to be in URLs, which is why this is failing.
This alternative seems to work:
If you can't reconstruct it, take your original URL.. look for the pipe (|) symbol near the end and replace it with %7C
Your source should have already done this, as I'm semi-confident pipes are meant to be encoded in URLs.. but it's easy to fix anyway :)