Debugging

To debug Javascript, set the debug parameter of start to True

import webview

webview.create_window('https://pywebview.flowrl.com/hello')
webview.start(debug=True)

This will enable web inspector on macOS, GTK and QT (QTWebEngine only). To open the web inspector, right click on the page and select Inspect.

To debug EdgeHTML, you need to install Microsoft Edge DevTools Preview. Launch the application and select your application from the list of running WebViews. The debug flag also routes console.logs to the Python console.

There is no way to attach an external debugger to MSHTML. The debug flag enables Javascript error reporting and right-click context menu on Windows.