I have a strange issue going on in my WordPress website.

I’m using the AMP and AMP cache plugins to handle this format when accessing from a mobile phone to the posts on my website.

For example, when reaching this url from a Google search:

https://www.sectorasegurador.es/los-mejores-seguros-de-salud/amp/

The icomoon.ttf does get loaded (status 200), however, the icons are not visible.

Now, If I refresh this page, the icons are visible.

On both situations, I can see that the resourse is loaded. But I see as well, that when coming from Google search, the url of this asset is:

https://www-sectorasegurador-es.cdn.ampproject.org/r/s/www.sectorasegurador.es/wp-content/plugins/accelerated-mobile-pages/templates/design-manager/swift/fonts/icomoon.ttf

And, when I refresh, it becomes:

https://www.sectorasegurador.es/wp-content/plugins/accelerated-mobile-pages/templates/design-manager/swift/fonts/icomoon.ttf

How come that, even the resource is properly loaded from Google CDN, the icons don’t show? Another weird thing is, that the resource is 140kb when coming from Google CDN, versus only 117kb when coming from my website.

The page I need help with: [log in to see the link]