Nice article! It's always interesting to look behind the scenes of payment infrastructure. BTW, when I tried the interactive demo [1] I noticed that it appende

Nice article! It's always interesting to look behind the scenes of payment infrastructure. BTW, when I tried the interactive demo [1] I noticed that it appended "undefined" to the end of the generated XML. Happens both in Firefox and Chrome, so it doesn't seem to be a browser quirk. [1] https://www.iso20022js.com/demo https://www.iso20022js.com/demo