I have a raspi that runs my brewery fermentation chamber and I just figured out that I can use Panel iFrame to pull in the webpage so I can change the temperature if needed. I noticed that when I look at the Panel iFrame on a computer screen it displays all the entire webpage however when I look at the Panel iFrame I only get a small part of the webpage. The first screen shot is what I see on the webpage and should see on my phone. The second screen shot is what I see on my phone.
I have noticed this too. Makes it impossible for me to take advantage of panel iframes on my phone