Wireshark-users: [Wireshark-users] How to decode the inner http nested in the outer http?

Date: Sat, 9 Jan 2016 16:26:39 +0000 (UTC)
I sent http request over another http, which is from the client to the web proxy, to the original web server. Here, the inner http is the payload of outer http.
I have decoded the outer http, and the CONNECT request is decoded as plain text. but the inner http application data is encrypted by the web server.
I tried "export PDU to files ...", then reopen the file, but no luck.
So, is it possible to decrypt the inner http in the outer http by wireshark? I used wireshark 1.12, I have the private keys of the web proxy and the web server, so I can decrypt the http from client to proxy, and http from client to web server.
or any other suggestion to decrypt the inner http?
Thanks

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