Hello, I have started working on my portfolio and was hoping to embed the models I uploaded to sketchfab. The iframes work fine, except the fullscreen button is not there. I did some fiddling with the element inspector on chrome (F12) and found that the viewer div also has a "no-fullscreen" class even though I enabled fullscreen (left the default values). Is this on purpose? Or maybe I did something wrong, keep in mind that I am a noob.