disabled sandboxing for headless chrome when performing unit tests via docker

package.json

 {
   "name": "mc_frontend",
-  "version": "1.6.1",
+  "version": "1.6.2",
   "author": "Ionic Framework",
   "homepage": "https://ionicframework.com/",
   "scripts": {
     "ng": "ng",
     "start": "ng serve --port 8100",
     "build": "ng build",
-    "test": "ng test --code-coverage --watch=false --browsers=ChromeHeadless",
+    "test": "ng test --code-coverage --watch=false",
     "test-debug": "ng test --watch=true --browsers=Chrome",
     "lint": "ng lint",
     "e2e": "ng e2e"

src/karma.conf.js

@@ -28,15 +28,20 @@ module.exports = function (config) {
         colors: true,
         logLevel: config.LOG_INFO,
         autoWatch: true,
-        browsers: ['Chrome', 'ChromeHeadless'],
-        browserDisconnectTimeout: 10000,
-        browserDisconnectTolerance: 3,
-        browserNoActivityTimeout: 60000,
-        flags: [
-            '--disable-web-security',
-            '--disable-gpu',
-            '--no-sandbox',
-        ],
+        browsers: ['ChromeHeadlessNoSandbox'],
+        // browserDisconnectTimeout: 10000,
+        // browserDisconnectTolerance: 3,
+        // browserNoActivityTimeout: 60000,
+        customLaunchers: {
+            ChromeHeadlessNoSandbox: {
+                base: 'ChromeHeadless',
+                flags: [
+                    '--no-sandbox',
+                    '--disable-gpu',
+                    '--disable-web-security'
+                ]
+            }
+        },
         singleRun: false
     });
 };