[Cherry Pick 0.79]: Fix modal Crash after closing DesktopPopupSiteBridge #15391
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* visual studio 2026 strict check fix * Fix Crash after closing DesktopPopupSiteBridge * Change files * yarn lint:fix amd format * remove debug logs * Revert "visual studio 2026 strict check fix" * visual studio 2026 strict check fix * nit comment
vineethkuttan
approved these changes
Nov 19, 2025
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Description
We’re seeing a crash when using DesktopPopupSiteBridge in React Native Windows: after closing the popup, the parent window crashes when processing subsequent messages (e.g., window move).
Type of Change
Why
resolves the modal crash on dismissing the modal.
Resolves [Add Relevant Issue Here]
#15165
What
Fix was to call
AppWindow::Destroyin sequence -> :AppWindow.Destroy,Popup.Hide,Popup.CloseOnly
DesktopPopupSiteBridge::{Hide,Close}were called earlier. furthermore, EnableWindow is win32 API which was forcing the parent window to take input but the popup was never cleanly destroyed and hence the crash.Now EnableWindow is no longer required as parent window automatically gets control when modal App window is destroyed.
Credits - @sundaramramaswamy , the fix was first tested on sample win32 repro .
ref : iamAbhi-916/ModalTest#1
Screenshots
modal_crash_fix.mp4
Testing
tested in playground
Changelog
Should this change be included in the release notes: _indicate yes
Add a brief summary of the change to use in the release notes for the next release.
Fixed modal dialog crash when interacting with parent window after dismissal.
Microsoft Reviewers: Open in CodeFlow