[v3] App panics when opening and closing windows repeatedly

[mbaklor]

Description

When opening and closing windows on windows 11, at around the 10th window opened, the app freezes and crashes with a panic. On times when it doesn't panic sometimes the windows both turn white or freeze in an unresponsive view for a bit before the new window opens.

The panic message is

Mar  9 16:33:42.161 INF Asset Request: windowName="" windowID=12 code=200 method=GET path=/settings/ duration=1.4969ms
2025/03/09 16:33:43 1: github.com/wailsapp/go-webview2/pkg/edge.(*Chromium).errorCallback
        C:/Users/Michael-PC/go/pkg/mod/github.com/wailsapp/[email protected]/pkg/edge/chromium.go:151
[WebView2 Error] The group or resource is not in the correct state to perform the requested operation.
2025/03/09 16:33:43 2: github.com/wailsapp/go-webview2/pkg/edge.(*Chromium).Focus
        C:/Users/Michael-PC/go/pkg/mod/github.com/wailsapp/[email protected]/pkg/edge/chromium.go:580

2025/03/09 16:33:43 3: github.com/wailsapp/wails/v3/pkg/application.(*windowsWebviewWindow).focus
        C:/Users/Michael-PC/development/wails/v3/pkg/application/webview_window_windows.go:782
Stack trace:
2025/03/09 16:33:43 4: github.com/wailsapp/wails/v3/pkg/application.(*windowsWebviewWindow).WndProc
        C:/Users/Michael-PC/development/wails/v3/pkg/application/webview_window_windows.go:1144
2025/03/09 16:33:43 5: github.com/wailsapp/wails/v3/pkg/application.(*windowsApp).wndProc
        C:/Users/Michael-PC/development/wails/v3/pkg/application/application_windows.go:256
2025/03/09 16:33:43 6: runtime.callbackWrap
        C:/Program Files/Go/src/runtime/syscall_windows.go:396
2025/03/09 16:33:43 7: runtime.cgocallbackg1
        C:/Program Files/Go/src/runtime/cgocall.go:444
2025/03/09 16:33:43 8: runtime.cgocallbackg
        C:/Program Files/Go/src/runtime/cgocall.go:350
2025/03/09 16:33:43 9: runtime.cgocallback
        C:/Program Files/Go/src/runtime/asm_amd64.s:1084
2025/03/09 16:33:43 10: runtime.systemstack_switch
        C:/Program Files/Go/src/runtime/asm_amd64.s:479
2025/03/09 16:33:43 11: runtime.cgocall
        C:/Program Files/Go/src/runtime/cgocall.go:185
2025/03/09 16:33:43 12: runtime.syscall_syscalln
        C:/Program Files/Go/src/runtime/syscall_windows.go:521
2025/03/09 16:33:43 13: syscall.SyscallN
        C:/Program Files/Go/src/runtime/syscall_windows.go:500
2025/03/09 16:33:43 14: syscall.(*Proc).Call
        C:/Program Files/Go/src/syscall/dll_windows.go:167
2025/03/09 16:33:43 15: syscall.(*LazyProc).Call
        C:/Program Files/Go/src/syscall/dll_windows.go:287
2025/03/09 16:33:43 16: github.com/wailsapp/wails/v3/pkg/w32.DispatchMessage
        C:/Users/Michael-PC/development/wails/v3/pkg/w32/user32.go:463
2025/03/09 16:33:43 17: github.com/wailsapp/wails/v3/pkg/application.(*windowsApp).runMainLoop
        C:/Users/Michael-PC/development/wails/v3/pkg/application/mainthread_windows.go:64
2025/03/09 16:33:43 18: github.com/wailsapp/wails/v3/pkg/application.(*windowsApp).run
        C:/Users/Michael-PC/development/wails/v3/pkg/application/application_windows.go:154
2025/03/09 16:33:43 19: github.com/wailsapp/wails/v3/pkg/application.(*App).Run
        C:/Users/Michael-PC/development/wails/v3/pkg/application/application.go:686
2025/03/09 16:33:43 20: main.main
        C:/Users/Michael-PC/development/wails-route-test/main.go:87
2025/03/09 16:33:43 21: runtime.main
        C:/Program Files/Go/src/runtime/proc.go:283
[0309/163343.556:ERROR:window_impl.cc(122)] Failed to unregister class Chrome_WidgetWin_0. Error = 1412
  ERROR   task: Failed to run task "run": exit status 1

To Reproduce

clone my example project, open and close the "settings" window a few times (usually around 10), happens both in dev mode and in production builds

Expected behaviour

the windows should not freeze when opening a new window and the app shouldn't crash when opening windows multiple times

Screenshots

wails-window-test.mp4

Attempted Fixes

No response

System Details

Wails (v3.0.0-dev)  Wails Doctor

# System

┌────────────────────────────────────────────────────────────────────────────────────────────┐
| Name              | Windows 10 Pro                                                         |
| Version           | 2009 (Build: 26100)                                                    |
| ID                | 24H2                                                                   |
| Branding          | Windows 11 Pro                                                         |
| Platform          | windows                                                                |
| Architecture      | amd64                                                                  |
| Go WebView2Loader | true                                                                   |
| WebView2 Version  | 133.0.3065.92                                                          |
| CPU               | 12th Gen Intel(R) Core(TM) i7-12700                                    |
| GPU 1             | Intel(R) UHD Graphics 770 (Intel Corporation) - Driver: 32.0.101.6078  |
| Memory            | 16GB                                                                   |
└────────────────────────────────────────────────────────────────────────────────────────────┘

# Build Environment

┌─────────────────────────────────────────────────────────┐
| Wails CLI    | v3.0.0-dev                               |
| Go Version   | go1.24.0                                 |
| Revision     | 28d22f7bfa4e752e68cc340a2f802dc16beb7b17 |
| Modified     | false                                    |
| -buildmode   | exe                                      |
| -compiler    | gc                                       |
| CGO_CFLAGS   |                                          |
| CGO_CPPFLAGS |                                          |
| CGO_CXXFLAGS |                                          |
| CGO_ENABLED  | 1                                        |
| CGO_LDFLAGS  |                                          |
| GOAMD64      | v1                                       |
| GOARCH       | amd64                                    |
| GOOS         | windows                                  |
| vcs          | git                                      |
| vcs.modified | false                                    |
| vcs.revision | 28d22f7bfa4e752e68cc340a2f802dc16beb7b17 |
| vcs.time     | 2025-02-27T10:02:02Z                     |
└─────────────────────────────────────────────────────────┘

# Dependencies

┌───────────────────────────┐
| npm  | 10.9.2             |
| NSIS | v3.11              |
|                           |
└─ * - Optional Dependency ─┘

# Checking for issues

 SUCCESS  No issues found

# Diagnosis

 SUCCESS  Your system is ready for Wails development!

Additional context

this happens both on windows 10 and 11, I'm not sure if it's windows exclusive but this feels like a webview issue so I'll assume it is