blocks|key|331634|text|您应该从阅读这个线程开始，它解释了什么是HTTP+CONNECT+CONNECT：https://groups.google.com/forum/#!topic/httpfiddler/RCkzE3HhhxY|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|331635|由于您已启用解密，如果您在Fiddler中看不到任何HTTPS通信，则可能是您启用了筛选器(单击帮助>疑难解答筛选器)，或者您尚未将Windows配置为信任Fiddler根证书，因此您的客户端在看到(不受信任的)+Fiddler证书时会立即中止连接。|331636|entityMap|0|LINK|mutability|MUTABLE|url|https://groups.google.com/forum/#!topic/httpfiddler/RCkzE3HhhxY^0|15|1R|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

You should start by reading this thread, which explains what a HTTP CONNECT Tunnel is: <a href="https://groups.google.com/forum/#!topic/httpfiddler/RCkzE3HhhxY">https://groups.google.com/forum/#!topic/httpfiddler/RCkzE3HhhxY</a>

Since you have enabled decryption, if you're not seeing any HTTPS traffic in Fiddler, you either have a Filter enabled (click Help > Troubleshoot Filters) or you have not configured Windows to trust the Fiddler root certificate and hence your clients are aborting the connection as soon as they see the (untrusted) Fiddler certificate.

blocks|key|331692|text|一些版本的Fiddler比其他版本更好地处理这一点。在我的工作场所，我们需要通过Fiddler路由外部设备。按照完全相同的设置和Fiddler选项，我们有四台PC和两台设备。有两个PC+Fiddler实例在每次都无法成功隧道的情况下被卡住。两个PC+Fiddler实例在任何一种设备上都能完美地工作。PC之间的共同点是Fiddler版本:+Fiddler+4.4.9.2:隧道在两台PC上为两台外部设备工作Fiddler+4.4.9.7:隧道在两台PC上为两台外部设备工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|331693|还要注意，还可以进一步设置Win8应用程序，以避免卡住隧道。您可能需要遵循“Fiddler”按钮，确保您的应用程序被选中为环回豁免，重新启动Win8...不幸的是，到目前为止，这是我只见过一次的情况，在关闭HTTPS解密设置并重新打开它们之前，您可能仍然会被隧道技术卡住。即使您已经信任了证书，然后重新启动了Fiddler。我无法解释这一点，但我回到了开始时的完全相同的设置，它开始工作。|331694|最后，如果您正在开发自己的Win8应用程序，那么打开像privateNetworkClientServer这样的功能来帮助启用某些Fiddler测试场景也不会有什么坏处。|331695|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Some versions of Fiddler handler this better than others. At my workplace, we needed to route external devices through Fiddler. Following exactly the same setup and Fiddler options, we have four PCs and two devices. Two of PC Fiddler instances get stuck unable to successfully tunnel every time, for either device. Two of the PC Fiddler instances work flawlessly, for either device. The common denominator between PCs was Fiddler version:
Fiddler 4.4.9.2: Tunneling works, on both PCs, for both external devices
Fiddler 4.4.9.7: Tunneling fails, on both PCs, for both external devices

Also note that there is further setup for Win8 applications to avoid getting stuck tunneling. You may need to follow the "Win8 Config" button, ensure your app is checked as a loopback exemption, restart Fiddler... Unfortunately, and this is something I've only seen once so far, you may still get stuck on tunneling until you turn OFF HTTPS decryption settings and turn them back on. Even after you've trusted the certificate and then restarted Fiddler. I can't explain that one, but I got back to exactly the same settings I started with and it just started working.

Finally, if you are developing your own Win8 applications with an appxmanifest, it couldn't hurt to turn on capabilities like privateNetworkClientServer to help enable certain Fiddler test scenarios.

blocks|key|114402|text|我想现在回答这个问题也太晚了，我的答案可能不会直接解决这个问题，但我假设它会解决主要动机。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114403|因此，如果你监控的是web应用，Google+Chrome基本上可以让你在Network->Websockets中查看Websockets，如下所示。|offset|length|style|CODE|114404|📷|atomic|114405|​|114406|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/2a79c742c659b51c15c456a736bb2bd1.png|imageAlt^0|0|G|D|11|J|1N|A|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@$D|X|E|Y|F|G]|$D|Z|E|10|F|G]|$D|11|E|12|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|13|8|@]|9|@$D|14|E|15|1|16]]|A|$]]|$1|K|3|L|5|6|7|17|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T|U|-4]]]]

I suppose it is pretty late to answer this question as well my answer might not directly resolve the question but I assume it will resolve the main motive. 

So if it is web app you are monitoring, basically <code>Google Chrome</code> lets you look into <code>Websockets</code> in <code>Network-&gt;Websockets</code> as shown below.
<a href="https://i.stack.imgur.com/VMw4F.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VMw4F.png" alt="enter image description here"></a>

blocks|key|114430|text|从IOS+10开始，增加了一个步骤。您需要信任证书。Settings+->常规->关于->证书信任设置|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114431|https://textslashplain.com/2016/07/27/using-fiddler-with-ios-10-and-android-7|offset|length|114432|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|25|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

As of IOS 10, there is one additional step.
You need to trust the certificate.
Settings -> General -> About -> Certificate Trust Settings

<a href="https://textslashplain.com/2016/07/27/using-fiddler-with-ios-10-and-android-7" rel="noreferrer">https://textslashplain.com/2016/07/27/using-fiddler-with-ios-10-and-android-7</a>

I've got Fiddler to decrypt https traffic. which works just fine.

<a href="http://fiddler2.com/documentation/Configure-Fiddler/Tasks/DecryptHTTPS" rel="noreferrer">http://fiddler2.com/documentation/Configure-Fiddler/Tasks/DecryptHTTPS</a> 

But there are some requests that are shown as "Tunnel to" port 443. Also the protocol of these requests are shown as HTTP instead of HTTPS.
I do not see the decrypted content of these requests.
 

<img src="https://i.stack.imgur.com/j1ssd.png" alt="enter image description here">

on the response details pane, it's shown as below:

<img src="https://i.stack.imgur.com/2dRZT.png" alt="enter image description here">

Can someone let me know how I can get fiddler to decrypt these tunnelled requests too.
Also appreciate if you could provide me some details about what's going on in this case.

Cheers.

Fiddler - tunnelled http requests to port 443

Windows

路由

我已经让Fiddler解密https流量了。它工作得很好。但也有一些请求显示为“隧道到”端口443。此外，这些请求的协议显示为HTTP而不是HTTPS。我看不到这些请求的解密内容。​​在response details窗格中，如下所示：​​有人能告诉我怎样才能让fiddler也解密这些隧道请求吗？如果你能为我提供一些在...

问通过Fiddler隧道发送到端口443的http请求
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