fix: dev launches passing the script file instead of the app directory

Changelog.md

@@ -7,6 +7,7 @@
 - Improved migration checks to honor custom output paths and to detect `ProjectGuid` in publish profiles (#946)
 - Fixed single instance handling on macOS (#1040)
 - Fixed slow socket bridge startup by binding to an explicit loopback address (#1103)
+- Fixed local debugging launching the host `main.js` as a script file, which made Electron run its default app and resolve app name and userData to "Electron" instead of the app's `productName` (dev launch now points at the `.electron` app directory)
 - Fixed socket bridge connection when a system proxy is configured (#1105)
 - Fixed electron-builder using the host RID instead of the target RID (#1097)
 - Fixed cross-compilation behavior on same platform (#1098) @epsnm

docs/Using/Debugging.md

@@ -40,7 +40,7 @@ Debug the Electron process when you need to inspect native Electron APIs:
     "Electron (unpackaged)": {
       "commandName": "Executable",
       "executablePath": "node",
-      "commandLineArgs": "node_modules/electron/cli.js main.js -unpackedelectron",
+      "commandLineArgs": "node_modules/electron/cli.js . -unpackedelectron",
       "workingDirectory": "$(TargetDir).electron",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
@@ -99,7 +99,7 @@ Add the debugging profiles to `Properties/launchSettings.json`:
     "Electron (unpackaged)": {
       "commandName": "Executable",
       "executablePath": "node",
-      "commandLineArgs": "node_modules/electron/cli.js main.js -unpackedelectron",
+      "commandLineArgs": "node_modules/electron/cli.js . -unpackedelectron",
       "workingDirectory": "$(TargetDir).electron",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

docs/Using/Startup-Methods.md

@@ -17,7 +17,9 @@ The framework supports **8 different launch scenarios** covering every combinati
 #### **`-unpackedelectron`** - Electron-first debugging
 ```bash
 # Launch Electron first, which then starts .NET
-node node_modules/electron/cli.js main.js -unpackedelectron
+# ('.' = the .electron dir: Electron then reads its package.json as the app manifest,
+#  so the app name and userData folder resolve correctly instead of defaulting to "Electron")
+node node_modules/electron/cli.js . -unpackedelectron
 ```
 
 #### **`-unpackeddotnet`** - .NET-first debugging
@@ -146,7 +148,7 @@ The image above illustrates how each combination of deployment type, application
   "Electron (unpackaged)": {
     "commandName": "Executable",
     "executablePath": "node",
-    "commandLineArgs": "node_modules/electron/cli.js main.js -unpackedelectron"
+    "commandLineArgs": "node_modules/electron/cli.js . -unpackedelectron"
   }
 }
 ```

src/ElectronNET.API/Runtime/Services/ElectronProcess/ElectronProcessActive.cs

@@ -83,7 +83,10 @@ protected override async Task StartCore()
                     startCmd = Path.Combine(electrondir, "node_modules", "electron", "dist", "Electron.app", "Contents", "MacOS", "Electron");
                 }
 
-                args = $"main.js -unpackeddotnet --trace-warnings -electronforcedport={this.socketPort:D} " + this.extraArguments;
+                // Pass the .electron directory instead of the main.js script file: with a script
+                // file Electron falls back to its default app, whose manifest is named "Electron",
+                // so the default userData folder becomes %APPDATA%\Electron from process startup.
+                args = $". -unpackeddotnet --trace-warnings -electronforcedport={this.socketPort:D} " + this.extraArguments;
                 workingDir = electrondir;
             }
             else

src/ElectronNET.ConsoleApp/Properties/launchSettings.json

@@ -9,7 +9,7 @@
     "Electron (unpackaged)": {
       "commandName": "Executable",
       "executablePath": "node",
-      "commandLineArgs": "node_modules/electron/cli.js main.js -unpackedelectron",
+      "commandLineArgs": "node_modules/electron/cli.js . -unpackedelectron",
       "workingDirectory": "$(TargetDir).electron",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

src/ElectronNET.WebApp/Properties/launchSettings.json

@@ -10,7 +10,7 @@
     "Electron (unpackaged)": {
       "commandName": "Executable",
       "executablePath": "node",
-      "commandLineArgs": "node_modules/electron/cli.js main.js -unpackedelectron",
+      "commandLineArgs": "node_modules/electron/cli.js . -unpackedelectron",
       "workingDirectory": "$(TargetDir).electron",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"