The window.close() does not work in webresource that opens by Xrm.Navigation.navigateTo

Applies to Product – Microsoft Dataverse

What’s happening?
The window.close() function does not work in an HTML web resource that is opened via Xrm.Navigation.navigateTo().

Reason:
The window.close() function is treated as a modal dialog within the Dynamics 365 Unified Interface, which prevents it from functioning as expected.

Resolution:

• As a mitigation method, it's recommended to prepend the custom HTML dialog directly in a new tab, which allows the page to close after clicking the close button.