IIS 压缩在响应中缺少 content-encoding,即使日志显示它工作正常

IIS Compression missing content-encoding in response even though logs show it working

我想要使用 gzip 压缩提供 .js 文件

我正在使用 IIS 7.5 并启用了动态和静态内容压缩。

在 IIS 日志中,我可以看到以下日志,它显示它似乎正在工作,因为它在 "GENERAL_RESPONSE_HEADERS" 事件 "Content-Encoding: gzip" 中显示

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
 <System>
  <Provider Name="WWW Server" Guid="{3A2A4E84-4C21-4981-AE10-3FDA0D9B0F83}"/>
  <EventID>0</EventID>
  <Version>1</Version>
  <Level>4</Level>
  <Opcode>47</Opcode>
  <Keywords>0x0</Keywords>
  <TimeCreated SystemTime="2017-03-29T23:40:41.555Z"/>
  <Correlation ActivityID="{8000000D-0003-FA00-B63F-84710C7967BB}"/>
  <Execution ProcessID="12296" ThreadID="13868"/>
  <Computer>AUD64909W0</Computer>
 </System>
 <EventData>
  <Data Name="ContextId">{8000000D-0003-FA00-B63F-84710C7967BB}</Data>
  <Data Name="Headers">Transfer-Encoding: chunked
Content-Type: application/javascript
Content-Encoding: gzip
Last-Modified: Wed, 29 Mar 2017 20:33:32 GMT
Accept-Ranges: bytes
ETag: &quot;d6af72bbcba8d21:0&quot;
Vary: Accept-Encoding
Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET
</Data>
 </EventData>
 <RenderingInfo Culture="en-NZ">
  <Opcode>GENERAL_RESPONSE_HEADERS</Opcode>
 </RenderingInfo>
 <ExtendedTracingInfo xmlns="http://schemas.microsoft.com/win/2004/08/events/trace">
  <EventGuid>{D42CF7EF-DE92-473E-8B6C-621EA663113A}</EventGuid>
 </ExtendedTracingInfo>
</Event>

然而,当在 Fiddler 或 Chrome 开发工具中查看时,响应 headers 未显示 Content-Encoding。

HTTP/1.1 200 OK
Transfer-Encoding: chunked
Content-Type: application/javascript
Last-Modified: Wed, 29 Mar 2017 20:33:32 GMT
Accept-Ranges: bytes
ETag: "d6af72bbcba8d21:0"
Vary: Accept-Encoding
Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET
Date: Thu, 30 Mar 2017 00:57:20 GMT

知道为什么这不起作用

已修复:问题是我机器上的防病毒软件正在删除 "Content-Encoding" 响应 header。