I have hosted my angular 8 project on IIS.

My java script files are not gzipped. The other files are getting gzipped.

My java script file

response header

My web.config –

<httpCompression directory="%SystemDrive%inetpubtempIIS Temporary Compressed Files">
    <scheme name="gzip" dll="%Windir%system32inetsrvgzip.dll"/>
    <dynamicTypes>
      <add mimeType="text/*" enabled="true"/>
      <add mimeType="message/*" enabled="true"/>
      <add mimeType="application/javascript" enabled="true"/>
      <add mimeType="*/*" enabled="false"/>
    </dynamicTypes>
    <staticTypes>
      <add mimeType="text/*" enabled="true"/>
      <add mimeType="message/*" enabled="true"/>
      <add mimeType="application/javascript" enabled="true"/>
      <add mimeType="*/*" enabled="false"/>
    </staticTypes>
  </httpCompression>
  <urlCompression doStaticCompression="true" doDynamicCompression="true"/>

i changed the web.config to allow gzip