I've looked into that and I've tried a space before it and no space before it...this i s a snippet of the array from the log:

77a4cffbf1,, Additional data:,,fou

Clearly there is a space in front of it, but nothing after it.  

I don't get it...I am not sure why it's not finding the "Additional data:" text.

When I log this:

var additionalData = arr[50];
gs.info("Additional Data: " + additionalData);

I get this:

Additional Data: Additional data: