In the following page there is a broken link.
It's the link to the vue related docs:

Correct link should be:
https://fontawesome.com/how-to-use/on-the-web/using-with/vuejs
In that alert the link instead is:
https://fontawesome.com/how-to-use/on-the-web/using-with/vue
Ciao!
Thanks for being part of the Font Awesome Community and for reporting this.
Thanks for the catch, @FrancescoMussi. We'll get that fixed up right away! 馃槃
Okay, this is fixed on https://fontawesome.com/how-to-use/on-the-web/using-with/vuejs. Thanks for giving us the heads up. 馃槃