Fix unresponsive Windows white screen

.github/workflows/release.yml

@@ -168,7 +168,7 @@ jobs:
         shell: bash
         run: ./scripts/verify-windows-runtime.sh D:/b/release/bundle/nsis/Wisp_*-setup.exe --require-vulkan
 
-      - name: Smoke-test the packaged Windows app
+      - name: Smoke-test the packaged Windows frontend and close behavior
         if: runner.os == 'Windows'
         shell: pwsh
         run: |

.github/workflows/windows-vulkan.yml

@@ -78,7 +78,7 @@ jobs:
       - name: Verify the installer runtime
         shell: bash
         run: ./scripts/verify-windows-runtime.sh D:/b/release/bundle/nsis/Wisp_*-setup.exe --require-vulkan
-      - name: Smoke-test the packaged app
+      - name: Smoke-test the packaged frontend and close behavior
         shell: pwsh
         run: |
           $installer = Get-ChildItem 'D:\b\release\bundle\nsis\Wisp_*-setup.exe' | Select-Object -First 1

app/src-tauri/src/lib.rs

@@ -4508,6 +4508,19 @@ fn set_search_mode(state: State<'_, AppState>, mode: String) -> Result<(), Strin
     Ok(())
 }
 
+/// Marks the first rendered frontend frame for the packaged Windows smoke test. Normal users keep
+/// the regular title; CI opts in with an environment variable so it can distinguish a working UI
+/// from a white WebView process that merely stayed alive.
+#[tauri::command]
+fn frontend_ready(window: tauri::WebviewWindow) -> Result<(), String> {
+    if std::env::var_os("WISP_SMOKE_TEST").is_some() {
+        window
+            .set_title("Wisp [ready]")
+            .map_err(|e| format!("could not mark the frontend ready: {e}"))?;
+    }
+    Ok(())
+}
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
@@ -4694,7 +4707,8 @@ pub fn run() {
             set_embedding_model,
             delete_embedding_model,
             search_mode,
-            set_search_mode
+            set_search_mode,
+            frontend_ready
         ])
         .build(tauri::generate_context!())
         .expect("error while building tauri application")

app/src-tauri/tauri.conf.json

@@ -17,7 +17,8 @@
         "width": 1040,
         "height": 740,
         "minWidth": 820,
-        "minHeight": 640
+        "minHeight": 640,
+        "additionalBrowserArgs": "--disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection --disable-gpu"
       }
     ],
     "security": {
@@ -27,6 +28,9 @@
   "bundle": {
     "active": true,
     "targets": ["nsis", "dmg"],
+    "windows": {
+      "minimumWebview2Version": "120.0.2210.61"
+    },
     "resources": [
       "resources/silero_vad.onnx"
     ],

app/src/routes/+page.svelte

@@ -1359,10 +1359,24 @@
     ensureProgressListener();
     ensureFileListeners();
     syncRunning();
+    // The packaged Windows test waits for this native title marker before it accepts startup. Two
+    // animation frames prove Svelte mounted and WebView2 completed a real paint; a white/hung
+    // renderer never reaches the command. Outside that opt-in test the backend leaves the title
+    // unchanged.
+    let readyFrame = requestAnimationFrame(() => {
+      readyFrame = requestAnimationFrame(() => {
+        void invoke("frontend_ready").catch(() => {
+          /* diagnostic-only handshake; never disrupt the real UI */
+        });
+      });
+    });
     // Re-check when the window regains focus, so granting in System Settings clears the banner.
     const onFocus = () => checkPermissions();
     window.addEventListener("focus", onFocus);
-    return () => window.removeEventListener("focus", onFocus);
+    return () => {
+      cancelAnimationFrame(readyFrame);
+      window.removeEventListener("focus", onFocus);
+    };
   });
   onDestroy(() => {
     unlisten?.();

scripts/smoke-windows-installer.ps1

@@ -4,13 +4,15 @@ param(
 )
 
 $ErrorActionPreference = "Stop"
+$readyTitle = "Wisp [ready]"
 
 if (-not (Test-Path -LiteralPath $Installer -PathType Leaf)) {
     throw "Windows installer not found: $Installer"
 }
 
 $extractDirectory = Join-Path ([System.IO.Path]::GetTempPath()) "wisp-windows-smoke-$([guid]::NewGuid())"
 $process = $null
+$previousSmokeTest = $env:WISP_SMOKE_TEST
 
 try {
     New-Item -ItemType Directory -Path $extractDirectory | Out-Null
@@ -20,14 +22,36 @@ try {
     }
 
     $executable = Join-Path $extractDirectory "Wisp.exe"
+    $env:WISP_SMOKE_TEST = "1"
     $process = Start-Process -FilePath $executable -WorkingDirectory $extractDirectory -PassThru
-    if ($process.WaitForExit(15000)) {
-        throw "Packaged Wisp.exe exited during startup with code $($process.ExitCode)"
+
+    $readyDeadline = [DateTime]::UtcNow.AddSeconds(30)
+    do {
+        if ($process.HasExited) {
+            throw "Packaged Wisp.exe exited during startup with code $($process.ExitCode)"
+        }
+        $process.Refresh()
+        if ($process.MainWindowTitle -eq $readyTitle -and $process.MainWindowHandle -ne [IntPtr]::Zero) {
+            break
+        }
+        Start-Sleep -Milliseconds 250
+    } while ([DateTime]::UtcNow -lt $readyDeadline)
+
+    if ($process.MainWindowTitle -ne $readyTitle -or $process.MainWindowHandle -eq [IntPtr]::Zero) {
+        throw "Packaged Wisp.exe did not render its frontend within 30 seconds"
+    }
+
+    if (-not $process.CloseMainWindow()) {
+        throw "Packaged Wisp.exe did not accept a close request"
+    }
+    if (-not $process.WaitForExit(10000)) {
+        throw "Packaged Wisp.exe rendered but its window became unresponsive while closing"
     }
 
-    Write-Host "Packaged Wisp.exe remained running for 15 seconds"
+    Write-Host "Packaged Wisp.exe rendered its frontend and closed responsively"
 }
 finally {
+    $env:WISP_SMOKE_TEST = $previousSmokeTest
     if ($null -ne $process -and -not $process.HasExited) {
         Stop-Process -Id $process.Id -Force
         $process.WaitForExit()