Responsiveness on Thinkific

Hi,

I have uploaded Storyline content as a web object to the Thinkific site, which has a responsive player. While the content works fine on a laptop it does not fill the screen correctly when viewed landscape on a mobile or tablet.

I understand that the modern player is responsive and have tried publishing it to fill the screen and to optimal size, though nothing changes. I have also tried variations of the classic player, though nothing seems to make it full screen.

1) Does anyone know how I can enable my Storyline content to be viewed in landscape mode on a tablet/mobile? Attached is an image of how the content currently appears.

2) I reached out to Thinkific's customer service. That was their answer: "However, I totally understand that you are concerned about the lesson does not go full screen. Therefore, I would like to share a little bit here that since the articulate storyline course is uploaded to our Multimedia lesson, it displays the content through an iframe so that might be the reason why it is not being able to open in fullscreen. " - Does anyone know how to enable iframe?

3) Is there a Javascript workaround for this problem? I did a lot of research and how to solve this problem with Javascript. I tried out different codes, but I could not come up with answer.

I appreciate any help!