Remove the Byte Order Mark, as it can prevent styles from applying
Remove the Byte Order Mark, as it can prevent styles from applying

In the Essence Pro theme,
the ionicons CSS file has a "\ufeff" character.
For some reason, this blocks the style rule from applying
on the AMP endpoint, though it doesn't affect the non-AMP endpoint.

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