Someone else asked a similar question about this and I tried the solution offered by hapdaniel but this didn't work for me.
What is it that would cause my Pipe to return Nulll but in the editor it is working?
Essentially my XML feeds is fetching a list of URL website addresses. I then filter this feed to strip out everything and only give me the domain name such as http://www.example.com
Here's my sample Pipe:
and the results showing Null
Many thanks