This article explains how to solve the following error in the browser console, mentioning that .woff2 file(s) is(are) missing.
This error occurs when the .woff2 format does not exist in the IIS Mime type list. To solve this, you must set IIS or web.config file to recognize this MIME type.
Adding woff2 to IIS
Adding woff2 to web.config
<staticContent> <remove fileExtension=".woff2" /> <mimeMap fileExtension=".woff2" mimeType="application/font-woff2" /> </staticContent>