Edge WebView2 Network Export log capture

Close the host process that invokes Edge WebView2.

Search for environment in Windows and open Edit the system environment variables and click the Environment Variables... button to open the editing page.

Create a new user/system variable as follows:

Variable name: WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS

Variable value: --log-net-log=%USERPROFILE%\Desktop\net-export.json --net-log-capture-mode=Everything

You can choose a different path instead of %USERPROFILE%\Desktop\net-export.json.

If you want the variable to be effective system-wide, create it as a system variable. Otherwise, create it as a user variable

Now launch the host process that invokes Edge WebView2, it will captuer Network Export log during its lifetime.

The Edge WebView2 Network Export log can be found on your desktop with the name net-export.json. If you changed the path, locate the file at your desired location.

Delete the user/system variable: WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS that you created.