fix ASAR for windows

src/bootstrap-window.js

@@ -36,6 +36,7 @@ exports.assign = function assign(destination, source) {
 exports.load = function (modulePaths, resultCallback, options) {
 	// @ts-ignore
 	const webFrame = require('electron').webFrame;
+	const path = require('path');
 
 	const args = exports.parseURLQueryArgs();
 	const configuration = JSON.parse(args['config'] || '{}') || {};
@@ -55,7 +56,14 @@ exports.load = function (modulePaths, resultCallback, options) {
 	exports.assign(process.env, configuration.userEnv);
 
 	// Enable ASAR support
-	bootstrap.enableASARSupport();
+	// Note: On windows we have to be careful about the drive letter casing. If
+	// the drive letter case is lowercase, we convert it to uppercase. DO NOT
+	// CHANGE THIS logic or otherwise loading will fail in windows.
+	let nodeModulesPath = path.join(configuration.appRoot, 'node_modules');
+	if (process.platform === 'win32' && /[a-z]\:/.test(nodeModulesPath)) {
+		nodeModulesPath = nodeModulesPath.charAt(0).toUpperCase() + nodeModulesPath.substr(1); // Make drive letter uppercase
+	}
+	bootstrap.enableASARSupport(nodeModulesPath);
 
 	// disable pinch zoom & apply zoom level early to avoid glitches
 	const zoomLevel = configuration.zoomLevel;

src/bootstrap.js

@@ -21,14 +21,16 @@ process.on('SIGPIPE', () => {
 //#endregion
 
 //#region Add support for using node_modules.asar
-exports.enableASARSupport = function () {
+/**
+ * @param {string=} nodeModulesPath
+ */
+exports.enableASARSupport = function (nodeModulesPath) {
 	// @ts-ignore
 	const Module = require('module');
 	const path = require('path');
-
-	let NODE_MODULES_PATH = path.join(__dirname, '../node_modules');
-	if (process.platform === 'win32' && /[a-z]\:/.test(NODE_MODULES_PATH)) {
-		NODE_MODULES_PATH = NODE_MODULES_PATH.charAt(0).toUpperCase() + NODE_MODULES_PATH.substr(1); // Make drive letter uppercase
+	let NODE_MODULES_PATH = nodeModulesPath;
+	if (!NODE_MODULES_PATH) {
+		NODE_MODULES_PATH = path.join(__dirname, '../node_modules');
 	}
 
 	const NODE_MODULES_ASAR_PATH = NODE_MODULES_PATH + '.asar';