windows 10 IIS发布html 内嵌unity3D，报错

IIS添加MIME类型

<mimeMap fileExtension=".unity3d" mimeType="application/octet-stream" />
<mimeMap fileExtension=".unity3dgz" mimeType="application/octet-stream" />
<mimeMap fileExtension=".unityweb" mimeType="application/binary" />