Fiddler重发请求时返回502错误，错误信息：

[Fiddler] The connection to ‘url.com’ failed.
System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https> HTTPS handshake to url.com (for #499) failed. System.Security.Authentication.AuthenticationException 调用 SSPI 失败，请参见内部异常。 < 要求的函数不受支持

原因是https没有配置正确，点击菜单栏：Tools -> Options，在打开的窗口中点击HTTPS标签，勾选：

• Capture HTTPS CONNECTs
• Decrypt HTTPS traffic

点击Protocols,添加 tls1.2 ，注意要用半角分号隔开。