Iframe for google form doesnt render on mobile

Hi
I have a problem on webpage that iframe that includes google form doesnt render on mobile, but works fine on the desktop.

<iframe src="URL" width="700" height="1700" frameborder="0" marginheight="0" marginwidth="0">Loading...</iframe>

Do you have any idea or direction to look for help?
Thanks.

@blipblop, I cannot reproduce the issue.

Using a fresh Grav 1.7.22 installation:

• Went to https://docs.google.com/forms and selected the default Contact form
• Copied the <iframe> snippet generated using Google's instruction.
• Pasted the snippet into page Typography
• The form is showing correctly using Chrome's mobile emulation.

If above steps are not working for you, please provide more information.

By the way, I don't think Grav is related to this issue.