Name:Tom
Clan:Jspigz
Member Since:Oct 2015
Last Seen:May 2022
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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I don't see any issue. Spaces are allowed in the message that is encoded/decoded. Just trim trailing spaces from your result and you are fine. All other left as they are.
If you don't know what is a "Trailing whitespace", then just web search it.