Check_MK sets itself fullscreen

[Tony]

Hi Guys,

I made a magic mirror as a monitoring screen for our software systems.
among others, we also use check_MK as a monitoring tool.
The issue is that when using an iFrame, check_MK shows itself as fullscreen.
No matter what I try…other modules are not visible…just check_mk
(as the mirror starts up, in a blink of an eye the correct size is shown, but when the page renders it goes fullscreen)
anyone encountered the same problem, or who has an answer

Thanx…