Prevent AMP iframe from loading twice
Prevent AMP iframe from loading twice

If non-AMP iframe navigates away, the AMP iframe had to reload twice (once for non-AMP URL, another for AMP URL).

Co-Authored-By: Alain Schlesser <6c4dc35be34957a40dcf4681df7b2c841266a248@gmail.com>

ampproject/amp-toolbox-php,ampproject/amp-toolbox-php