Enabled Headless Option

Author: ChiragRupani

README.md

@@ -22,16 +22,34 @@ npm install -g <path/to/tgz>
 
 ```js
 // karma.conf.js
-module.exports = function(config) {
+module.exports = function (config) {
   config.set({
     browsers: ['EdgeDev'],
     plugins: [
       require('karma-jasmine'),
       require('@chiragrupani/karma-chromium-edge-launcher'),
       require('karma-jasmine-html-reporter'),
       require('karma-coverage-istanbul-reporter'),
-      require('@angular-devkit/build-angular/plugins/karma')
-    ]
+      require('@angular-devkit/build-angular/plugins/karma'),
+    ],
+  });
+};
+```
+
+For Headless
+
+```js
+// karma.conf.js
+module.exports = function (config) {
+  config.set({
+    browsers: ['EdgeDevHeadless'],
+    plugins: [
+      require('karma-jasmine'),
+      require('@chiragrupani/karma-chromium-edge-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular-devkit/build-angular/plugins/karma'),
+    ],
   });
 };
 ```

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@chiragrupani/karma-chromium-edge-launcher",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "A Karma plugin. Launcher for different Chromium Edge channels - Dev, Canary, Beta and Stable",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -33,13 +33,13 @@
   "devDependencies": {
     "@types/chai": "^4.2.11",
     "@types/mocha": "^7.0.2",
-    "@types/node": "^13.11.0",
-    "@types/sinon": "^9.0.0",
+    "@types/node": "^14.0.5",
+    "@types/sinon": "^9.0.4",
     "chai": "^4.2.0",
-    "mocha": "^7.1.1",
+    "mocha": "^7.1.2",
     "nyc": "^15.0.1",
-    "ts-node": "^8.8.2",
-    "typescript": "^3.8.3"
+    "ts-node": "^8.10.1",
+    "typescript": "^3.9.3"
   },
   "nyc": {
     "reporter": [

package.json

@@ -34,23 +34,22 @@ export default class BaseBrowser {
       // and we need disable-renderer-backgrounding too
       // see https://github.com/karma-runner/karma-chrome-launcher/issues/123
       '--disable-renderer-backgrounding',
-      '--disable-device-discovery-notifications'
+      '--disable-device-discovery-notifications',
     ].concat(this.flags, [url]);
 
     return allflags;
   }
 
   _getHeadlessOptions(url: string): string[] {
     var mergedArgs = this._getOptions(url).concat([
-      // Headless not working on NodeJS
-      // '--headless',
-      '--no-proxy-server'
+      '--headless',
+      '--no-proxy-server',
       // '--disable-gpu'
     ]);
 
     var args: string[];
 
-    if (mergedArgs.some(f => f.indexOf('--remote-debugging-port=') !== -1)) {
+    if (mergedArgs.some((f) => f.indexOf('--remote-debugging-port=') !== -1)) {
       args = mergedArgs;
     } else {
       args = mergedArgs.concat(['--remote-debugging-port=9222']);