web.config

<?xml version="1.0" encoding="utf-8"?>
<!--
 | Version 10.2
 | Copyright 2012 Esri
 |
 | Licensed under the Apache License, Version 2.0 (the "License");
 | you may not use this file except in compliance with the License.
 | You may obtain a copy of the License at
 |
 |    http://www.apache.org/licenses/LICENSE-2.0
 |
 | Unless required by applicable law or agreed to in writing, software
 | distributed under the License is distributed on an "AS IS" BASIS,
 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 | See the License for the specific language governing permissions and
 | limitations under the License.
-->
<configuration>
    <system.webServer>
        <staticContent>
            <!-- Configure site to serve JSON and MD but not YAML files -->
            <remove fileExtension=".json" />
            <mimeMap fileExtension=".json" mimeType="application/json; charset=UTF-8" />
            <remove fileExtension=".md" />
            <mimeMap fileExtension=".md" mimeType="text/markdown; charset=UTF-8" />
            <remove fileExtension=".yml" />
        </staticContent>
    </system.webServer>
</configuration>