[Wasm] Runtime crash when clipboard access has been refused

[jhanvi03]

Current behavior

On any web browser when the user clicks on 'Paste Text from Clipboard' button, the app crashes.
The crash happens only when the Clipboard access is blocked. Alothough with the same setting upon clicking on other buttons doesn’t lead to crash.

Screen.Recording.2025-01-29.at.12.28.44.PM.mov

Expected behavior

App should not crash

How to reproduce it (as minimally and precisely as possible)

1. Open Gallery canary on any web browser
2. Navigate to Menu -> Non-UI features
3. click on 'Paste Text From Clipboard' button
4. Observe the app crash

Workaround

No response

Works on UWP/WinUI

None

Environment

No response

NuGet package version(s)

Package Referenced version Updated version
Uno.CommunityToolkit.WinUI.UI.Controls 7.1.200 7.1.204
Uno.CommunityToolkit.WinUI.UI.Controls.DataGrid 7.1.200 7.1.204
Uno.Core.Extensions.Compatibility 4.0.1 4.1.1
Uno.Core.Extensions.Disposables 4.0.1 4.1.1
Uno.Sdk 5.6.20 5.7.0-dev.27

Package	Referenced version	Updated version
Uno.CommunityToolkit.WinUI.UI.Controls	7.1.200	7.1.204
Uno.CommunityToolkit.WinUI.UI.Controls.DataGrid	7.1.200	7.1.204
Uno.Core.Extensions.Compatibility	4.0.1	4.1.1
Uno.Core.Extensions.Disposables	4.0.1	4.1.1
Uno.Sdk	5.6.20	5.7.0-dev.27

Affected platforms

No response

IDE

No response

IDE version

No response

Relevant plugins

No response

Anything else we need to know?

No response

[jeromelaban]

@jhanvi03 I've not reproducing this. Did you have something in the clipboard at that time? Maybe that's where the issue lies.

When posting issues with crashes, also paste the contents of the browser debugger console, thanks!

[jhanvi03]

@jeromelaban,It breaks when Clipboard access is denied. On both mac and windows.

Here are the logs:

unogallerycanary.z27.web.core.windows.net-1738177678662.log