Error in ITX demo on github

The ITX demo on github contains an error in call.js source code. The following is defined twice:
const relayTransactionHash
Which results in the error: SyntaxError: Identifier ‘relayTransactionHash’ has already been declared

These are the locations where relayTransactionHash is defined:

Thank you so much for watching out @gpersoon. There is a pull request for this, and hopefully, the team will review this and have it merged soon. You can follow the pr here

We merged the PR and this should fix the problem, thank you @gpersoon for flagging this up!