So following this link to embed a Survey123 form in a web application using a JavaScript API: https://community.esri.com/groups/survey123/blog/2020/03/05/introducing-the-survey123-web-app-javascript-api
However it simply does not work. I'm not sure when I'm doing wrong here I have where the API is linked:

And here is where I am trying to embed the form:

Currently I am simply using an iFrame however I want the form to be of a certain height, but this creates an issue when mobile users needs to sign, they click the signature box and this loads in the iFrame a smaller box which they cannot scroll to. If anybody can help with either the API issue but mainly I'd like to circumvent the signature issue, that would be appreciated.