Play timeline when users scrolls to the end of HTML widget (iframe)

[Daniel]

This code would need to be within the HTML widget's code, since the parent (the Hype document) can't listen to that frame's scroll position. (That is, without postmessage information shared between the two)

Here's more info on that postmessage workflow with some code samples:

Advance a timeline from external URL in iFrame?

It might be useful if you could share a zip of your .hype document; this would help reproduce the error and also better understand your setup. I’m going to assume you just need to call a function made within the Hype document from an HTML Widget element. The most basic way would be to call into a parent like: parent.window.HYPE.documents["index"].functions().untitledFunction(); (“index” may need to be changed in your case) However, this probably won’t work if your HTML Widget is on a differ…