How can I open a link within a Storyline or Rise (i)frame (rather than a new page)?

Hi everyone,

I'd like to add a poll to my e-learning and upon submitting, show the learner how others have answered the poll as well.

Whenever I embed this poll into Rise through an iframe or in Storyline through a web object, for some reason, when the learner clicks 'submit', a new page opens, rather than showing the result within the page. 

Instead, I'd like to simply contain any future links to open within the iframe or web object itself rather than directing learners outside of the page. How can I do that in either Rise (preferably Rise as it's easier) or Storyline?

https://360.articulate.com/review/content/1251aee6-68df-4aa6-bd47-cb9edbd1b064/review

Here you can see an example of the webobject I created in Storyline by the way. When clicking submit, you're supposed to see the result within the page, but instead it seems to open as a pop-up (I did select display in slide, by the way).

Thank you!
Evelien

PS: By the way, this is the original poll and it does open normally within the page, so regardless, I find it a bit odd that it acts differently within Rise/Storyline: https://ripe-ncc.typeform.com/to/IFHxoHj6