unity ab包部署到IIS

web.config文件：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <directoryBrowse enabled="true" />
        <httpProtocol>
            <customHeaders>
                <add name="Access-Control-Allow-Headers" value="Content-Type, api_key, Authorization" />
                <add name="Access-Control-Allow-Origin" value="*" />
                <add name="Access-Control-Allow-Credentials" value="true" />
                <add name="Access-Control-Allow-Methods" value="GET, PUT,POST,DELETE,HEAD OPTIONS" />
            </customHeaders>
        </httpProtocol>
        <staticContent>
            <mimeMap fileExtension=".unity3d" mimeType="text/plain" />
            <mimeMap fileExtension=".unityweb" mimeType="application/binary" />
            <mimeMap fileExtension="." mimeType="application/octet-stream" />
            <mimeMap fileExtension=".assetbundle" mimeType="application/octet-stream" />
        </staticContent>
    </system.webServer>
</configuration>