Looks like I found the answer (thanks @Igy for pointing to the Advanced tab).
Click the Advanced tab and set the iframe page tab to Enabled. He seems to have fixed it.
Interestingly, I do not even see this option in my two other Applications (those who did not have this problem). I donβt understand why my applications have different options. All three of them are just simple HTML rendering in an iframe.
PS Sorry for the two answers. I am new here and do not want my previous post to be the answer at all, but the system did not allow me to post a comment.
source share