web.xml to with mime type for web fonts

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>Web-Fonts</display-name>
    
    <!-- web fonts -->
    <mime-mapping>
        <extension>eot</extension>
        <mime-type>application/vnd.ms-fontobject</mime-type>
    </mime-mapping>
    <mime-mapping>  
        <extension>otf</extension>  
        <mime-type>application/x-font-opentype</mime-type>  
    </mime-mapping>      
    <mime-mapping>  
        <extension>ttf</extension>  
        <mime-type>application/x-font-ttf</mime-type>  
    </mime-mapping>      
    <mime-mapping>  
        <extension>woff</extension>  
        <mime-type>application/x-font-woff</mime-type>  
    </mime-mapping>
    <mime-mapping>  
        <extension>svg</extension>  
        <mime-type>image/svg+xml</mime-type>  
    </mime-mapping>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>

Marten, sorry no change to do. All this mime-mapping rules exist at the web.xml file, except .woff2. No change from result?
With more deep investigate, I can see following error:

• Failed to load resource: net::ERR_NAME_NOT_RESOLVED ===> 9431e9a5-7a6d-4b5f-82be-4d935972de5a.css:1
• Failed to load resource: the server responded with a status of 404 () ===> ags.esribelux.eu/:1
• Access to font at 'http://ags.esribelux.eu/arcgis_js_v325_api/arcgis_js_api/library/3.25/3.25/esri/themes/calcite/fonts/avenir-next/Avenir_Next_W01_300.woff2' from origin 'http://ags.esribelux.eu:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. ==>(index):1
• Failed to load resource: net::ERR_FAILED ==> Avenir_Next_W01_300.woff2:1
• Access to font at 'http://ags.esribelux.eu/arcgis_js_v325_api/arcgis_js_api/library/3.25/3.25/esri/themes/calcite/fonts/avenir-next/Avenir_Next_W01_300.woff' from origin 'http://ags.esribelux.eu:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. ==> (index):1
• Failed to load resource: net::ERR_FAILED ==> Avenir_Next_W01_300.woff:1
• Failed to load resource: the server responded with a status of 404 () ==> ags.esribelux.eu/:1
• Uncaught ReferenceError: require is not defined ==> (index):48
  at (index):48

Status code 404 ==> access problems to resolve between tomcat and IIS. Is there a solution to use a IIS Tomcat connector?