This HTTPS web site does not support decryption under Windows 7

[Chen]

https://fpcy.hunan.chinatax.gov.cn:8083/NWebQuery/yzmQuery

This website support decryption under Windows 10 but does not support decryption under Windows 7.

version:v5.0.20244.10953 

This website has enabled TLS1.2 and TLS1.3.

The open-source tool mitmproxy supports decryption under Windows 7.

[Chen]

This website has enabled TLS1.2 and TLS1.3.

The open-source tool mitmproxy supports decryption under Windows 7.

[Nick Iliev]

Hello Chen.

 

We are not affiliated with a tool called mitmproxy and can not comment on decisions to support obsolete protocols that are currently considered unsafe. However, note that Fiddler Classic supports TLS1.2 and can decrypt TLS 1.2 traffic, but TLS1.2 is not natively supported in Windows 7. The issue is that the server works with HTTP/2 and TLS 1.3, which are not currently supported in Fiddler Classic. 

[Nick Iliev]

Hello Chen,

 

The targeted server API endpoints use newer versions of TLS, which are not supported in Windows 7 (but are supported in Windows 10/11). Additionally, HTTP/2 and TLS1.3 are unsupported in Fiddler Classic - as an alternative, you could try the new Fiddler Everywhere, which has full support for TLS 1.3 and HTTP/2 (but again, won't support Windows 7 that is no longer supporting modern-day secure TLS versions).

 

Regards,
Nick Iliev
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