get_window_handles() not returning expected results in Chromium-based Edge WebDriver (v136/v137)

Question

Hello everyone,

We are encountering an issue with the Edge WebDriver (versions 136.0.3240.104 and 137.0.3296.58) where the get_window_handles() and get_window_handle() methods do not return expected results in certain automation environments.

Environment:

• OS: Windows 10
• Edge Browser Versions: 136, 137
• Edge WebDriver Versions: 136.0.3240.104, 137.0.3296.58
• Chromium Base: 137.0.7151.56
• Automation Framework: Selenium-based

Behavior:

• When using Selenium directly, both methods work as expected — window handles are retrieved and switching between windows is successful.
• However, in another automation context using the same WebDriver versions, these methods fail to return any window handles.

Questions:

• Are there any known issues or changes in Chromium or Edge WebDriver around window handle management in versions 136/137?
• Could this be related to timing, security settings, or recent changes in the WebDriver implementation?

Any insights or suggestions would be greatly appreciated. Thank you!

Kind Regards,

Toru.

Answer 1

We tested this and confirmed that the window handle was obtained correctly with Edge Ver137.0.3296.68 + WebDriver Ver137.0.3296.68.

Thanks for Advaice.