[Problem/Bug]: WebView2 freezes when a mouse button is pressed while scrolling.

[alxweiss]

What happened?

When a mouse button is pressed while scrolling with the mouse wheel, the webview becomes unresponsive. The webview starts working again when moving the mouse outside the application window. The issue occurs from Windows SDK Version 1.4.230822000 and worked until Windows SDK Version 1.3.230724000.

Importance

Important. My app's user experience is significantly compromised.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

120.0.2210.121

SDK Version

WinAppSDK 1.4.231219000

Framework

WinUI3/WinAppSDK

Operating System

Windows 10, Windows 11

OS Version

10.0.19045

Repro steps

• Create new WinUI3 Desktop app.
• Add a WebView2.
• Run the app and press a mouse button while scrolling.
• The window becomes unresponsive.

Repros in Edge Browser

No

Regression

Regression in newer SDK

Last working version (if regression)

WinAppSDK 1.3.230724000

AB#48453877

[tochukwuIbeEkeocha]

Confirmed, able to repro this. This will be tracked on our backlog and worked on accordingly.

[jarno9981]

strange using latest app sdk and runtime 1.4.2 and for me it doesn't freeze or crash

[bundgaard]

This is reproducible in the latest release 1.0.2277.86, but I would like to add that I have a STATIC control on top of the WebViewController, and clicking that will freeze the window.

[tochukwuIbeEkeocha]

Hello,

Looks like the issue is not reproing on the latest version of WinAppSDK. Consider updating your apps to use the latest version.