fiddler启动就会自动作为系统的代理。

fiddler安装https证书之后才能抓到https的包：

tools => options => https => 勾选 Capture HTTPS CONNECTs => 勾选 Decrypt HTTPS trafic ,会弹出安装证书的提示,一路点 "Yes" (是）或确定安装即可.

也可参考：https://www.jianshu.com/p/293874d02fe6

转自简书；

Fiddler