User-1174608757 posted
Hi, udal_cse,
I use F12 and chrome browser and I find it shows error in the test page.You could see as below:
I notice that in the test page,it use iframe and show the testpage in the iframe. So I think your page has no problem to show on the iphone mobile because the error has no connection with your website
just because test page use iframe to show the page.
Best Regards
Wei