web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
	    <security>
			<requestFiltering allowDoubleEscaping="true" />
		</security>
        <rewrite>
            <rules>
                <rule name="DuckyDinnerRewrite" stopProcessing="true">
                    <match url="^(.*)$" />
                    <conditions logicalGrouping="MatchAll">
                        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                        <add input="{REQUEST_URI}" pattern=".*map$" negate="true" />
                    </conditions>
                    <action type="Rewrite" url="index.html" />
                </rule>
            </rules>
        </rewrite>
        <staticContent>
            <remove fileExtension=".map" />
            <mimeMap fileExtension=".map" mimeType="application/json" />
        </staticContent>
    </system.webServer>
</configuration>