hi,
i have the same problem with the iframe wrapper.
for an example have look here: https://wptest.janbrouwer.nl/wp/?page_id=36
the width is not sized correctly, it seems to fit in the ‘page width’, but as you can see the right side has been cut of.
the height is quite wrong.
i am on mountain lion, using safari
tried it in windows using explorer. same thing happens.
funniest thing is: loading the page on an iPad, goes a little slowly but the full height of the external page loads.
the width of the external page is not adjusted, and overlaps the margin a little bit.
on the iphone it works well as mobile page
i have tried the plugin in various themes, even in a clean install, without any other plugins installed.
no solution yet.
hope to hear,
jan brouwer, amsterdam