ElRochito · May 25, 2026 09:34
diff --git a/README.md b/README.md
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
  <head>
    <meta charset="UTF-8" />
    <title>Reproduction — Electron helper crash</title>
    <style>
      body { font-family: system-ui, sans-serif; padding: 24px; max-width: 640px; line-height: 1.6; }
      h2 { margin-top: 0; }
      code, pre { background: #f4f4f4; border-radius: 4px; font-size: 13px; }
      code { padding: 2px 6px; }
      pre { padding: 12px; overflow-x: auto; }
      .ok   { color: green; font-weight: bold; }
      .warn { color: crimson; font-weight: bold; }
    </style>
  </head>
  <body>
    <h2>Reproduction — "Unable to find helper app" (macOS 26, arm64)</h2>

    <p>
      <span class="ok">✓ Step 1 passed</span> — this app launches correctly in dev mode (Electron Fiddle).
    </p>

    <p>
      <span class="warn">Step 2</span> — to reproduce the crash, run the following command
      in a terminal on <strong>macOS 26 arm64</strong>:
    </p>

    <pre>bash &lt;(curl -s https://gist.githubusercontent.com/ElRochito/f251a4231213679f31a6c97d5b8ab625/raw/reproduce.sh)</pre>

    <p>
      The script installs Electron 42, renames the helper apps to simulate what a packager does,
      then launches the binary — expected result: <code>exit 133 (SIGTRAP)</code>,
      <code>Unable to find helper app</code>.
    </p>
  </body>
 </html>
diff --git a/main.js b/main.js
 const { app, BrowserWindow } = require('electron')
 const path = require('path')

 function createWindow() {
  const win = new BrowserWindow({
    width: 600,
    height: 400,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
    },
  })
  win.loadFile('index.html')
 }

 app.whenReady().then(createWindow)

 app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') app.quit()
 })
diff --git a/preload.js b/preload.js
 // Empty preload — no Node.js APIs needed for this reproduction
diff --git a/reproduce.sh b/reproduce.sh
 #!/usr/bin/env bash
 # Reproduction script for:
 # [Bug] Helper app lookup uses hardcoded "Electron Helper" name
 # Tested on: macOS 26.5 (Darwin 25.5.0), arm64, Electron 42.2.0
 #
 # Requirements: Node.js, pnpm (or npm/yarn)
 #
 # Run: bash reproduce.sh

 set -e

 ELECTRON_VERSION="42.2.0"
 WORK_DIR="$(mktemp -d)"
 echo "Working in $WORK_DIR"

 # 1. Install Electron locally
 cd "$WORK_DIR"
 cat > package.json <<'JSON'
 { "name": "repro", "version": "1.0.0", "devDependencies": { "electron": "42.2.0" } }
 JSON
 npm install --silent

 ELECTRON_APP="node_modules/electron/dist/Electron.app"

 # 2. Verify the app works as-is (helpers still named "Electron Helper")
 echo ""
 echo "=== Step 1: launching with original helper names (should NOT crash) ==="
 xattr -dr com.apple.quarantine "$ELECTRON_APP" 2>/dev/null || true
 timeout 4 "$ELECTRON_APP/Contents/MacOS/Electron" --no-sandbox 2>&1 || true
 echo "→ OK, no crash"

 # 3. Copy the app and rename helpers (simulate what electron-builder does)
 cp -R "$ELECTRON_APP" "$WORK_DIR/TestApp.app"
 FRAMEWORKS="$WORK_DIR/TestApp.app/Contents/Frameworks"

 for SUFFIX in "" " (GPU)" " (Plugin)" " (Renderer)"; do
  SRC="$FRAMEWORKS/Electron Helper${SUFFIX}.app"
  DST="$FRAMEWORKS/TestApp Helper${SUFFIX}.app"
  if [ -d "$SRC" ]; then
    mv "$SRC" "$DST"
    mv "$DST/Contents/MacOS/Electron Helper${SUFFIX}" \
       "$DST/Contents/MacOS/TestApp Helper${SUFFIX}" 2>/dev/null || true
  fi
 done

 xattr -dr com.apple.quarantine "$WORK_DIR/TestApp.app" 2>/dev/null || true

 # 4. Launch with renamed helpers — should crash
 echo ""
 echo "=== Step 2: launching with renamed helpers (SHOULD crash with exit 133) ==="
 "$WORK_DIR/TestApp.app/Contents/MacOS/Electron"
 EXIT_CODE=$?
 echo "Exit code: $EXIT_CODE"

 if [ "$EXIT_CODE" -eq 133 ]; then
  echo "✓ Reproduced: exit 133 (SIGTRAP) — Unable to find helper app"
 else
  echo "✗ Could not reproduce on this system (exit $EXIT_CODE)"
 fi
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<title>Reproduction — Electron helper crash</title>
	<style>
	body { font-family: system-ui, sans-serif; padding: 24px; max-width: 640px; line-height: 1.6; }
	h2 { margin-top: 0; }
	code, pre { background: #f4f4f4; border-radius: 4px; font-size: 13px; }
	code { padding: 2px 6px; }
	pre { padding: 12px; overflow-x: auto; }
	.ok { color: green; font-weight: bold; }
	.warn { color: crimson; font-weight: bold; }
	</style>
	</head>
	<body>
	<h2>Reproduction — "Unable to find helper app" (macOS 26, arm64)</h2>

	<p>
	<span class="ok">✓ Step 1 passed</span> — this app launches correctly in dev mode (Electron Fiddle).
	</p>

	<p>
	<span class="warn">Step 2</span> — to reproduce the crash, run the following command
	in a terminal on <strong>macOS 26 arm64</strong>:
	</p>

	<pre>bash <(curl -s https://gist.githubusercontent.com/ElRochito/f251a4231213679f31a6c97d5b8ab625/raw/reproduce.sh)</pre>

	<p>
	The script installs Electron 42, renames the helper apps to simulate what a packager does,
	then launches the binary — expected result: <code>exit 133 (SIGTRAP)</code>,
	<code>Unable to find helper app</code>.
	</p>
	</body>
	</html>
	const { app, BrowserWindow } = require('electron')
	const path = require('path')

	function createWindow() {
	const win = new BrowserWindow({
	width: 600,
	height: 400,
	webPreferences: {
	preload: path.join(__dirname, 'preload.js'),
	},
	})
	win.loadFile('index.html')
	}

	app.whenReady().then(createWindow)

	app.on('window-all-closed', () => {
	if (process.platform !== 'darwin') app.quit()
	})
	#!/usr/bin/env bash
	# Reproduction script for:
	# [Bug] Helper app lookup uses hardcoded "Electron Helper" name
	# Tested on: macOS 26.5 (Darwin 25.5.0), arm64, Electron 42.2.0
	#
	# Requirements: Node.js, pnpm (or npm/yarn)
	#
	# Run: bash reproduce.sh

	set -e

	ELECTRON_VERSION="42.2.0"
	WORK_DIR="$(mktemp -d)"
	echo "Working in $WORK_DIR"

	# 1. Install Electron locally
	cd "$WORK_DIR"
	cat > package.json <<'JSON'
	{ "name": "repro", "version": "1.0.0", "devDependencies": { "electron": "42.2.0" } }
	JSON
	npm install --silent

	ELECTRON_APP="node_modules/electron/dist/Electron.app"

	# 2. Verify the app works as-is (helpers still named "Electron Helper")
	echo ""
	echo "=== Step 1: launching with original helper names (should NOT crash) ==="
	xattr -dr com.apple.quarantine "$ELECTRON_APP" 2>/dev/null \|\| true
	timeout 4 "$ELECTRON_APP/Contents/MacOS/Electron" --no-sandbox 2>&1 \|\| true
	echo "→ OK, no crash"

	# 3. Copy the app and rename helpers (simulate what electron-builder does)
	cp -R "$ELECTRON_APP" "$WORK_DIR/TestApp.app"
	FRAMEWORKS="$WORK_DIR/TestApp.app/Contents/Frameworks"

	for SUFFIX in "" " (GPU)" " (Plugin)" " (Renderer)"; do
	SRC="$FRAMEWORKS/Electron Helper${SUFFIX}.app"
	DST="$FRAMEWORKS/TestApp Helper${SUFFIX}.app"
	if [ -d "$SRC" ]; then
	mv "$SRC" "$DST"
	mv "$DST/Contents/MacOS/Electron Helper${SUFFIX}" \
	"$DST/Contents/MacOS/TestApp Helper${SUFFIX}" 2>/dev/null \|\| true
	fi
	done

	xattr -dr com.apple.quarantine "$WORK_DIR/TestApp.app" 2>/dev/null \|\| true

	# 4. Launch with renamed helpers — should crash
	echo ""
	echo "=== Step 2: launching with renamed helpers (SHOULD crash with exit 133) ==="
	"$WORK_DIR/TestApp.app/Contents/MacOS/Electron"
	EXIT_CODE=$?
	echo "Exit code: $EXIT_CODE"

	if [ "$EXIT_CODE" -eq 133 ]; then
	echo "✓ Reproduced: exit 133 (SIGTRAP) — Unable to find helper app"
	else
	echo "✗ Could not reproduce on this system (exit $EXIT_CODE)"
	fi