Fiddler is a commonly used packet capture tool for development and testing. As for downloads, there are many Baidu search downloads on the Internet;
The following describes the properties of setting Fiddler after opening the installation:
1. First open the Fiddler menu option Tools—>TelerikFiddler Options
Let's start with the Https configuration:
The first way: uncheck Capture Https
The second way: check both Decrypt Https traffic and Ignore server certificate errors at the same time
I generally use the first method and uncheck it directly.
2. Configure Fiddler remote connection mode 
First of all, you have to see clearly that the default port number of your Fiddler configuration is 8888. You need to manually configure the mobile terminal wireless network proxy for this port number, which will be discussed later. The second is to check Allow remote computer to connect to allow remote access to the link all the time. Now that Fiddler is basically set up, the rest is to set up the mobile proxy.
3. Mobile terminal parameter configuration
First of all, you must ensure that the network connected to your PC is the same network that your mobile phone is connected to, and then enter ipconfig to view the ip through CMD
Then open the WiFi settings of the current connection of the phone, and select Manually set the proxy
After clicking OK to save, you can directly connect to the data line and PC-side Fiddler to use
