Switch from the Chrome runner to JSDom (#8800)

(cherry picked from commit 4313463a94)

src/Umbraco.Web.UI.Client/package.json

@@ -71,11 +71,11 @@
     "gulp-wrap": "0.15.0",
     "gulp-wrap-js": "0.4.1",
     "jasmine-core": "3.5.0",
+    "jsdom": "16.4.0",
     "karma": "4.4.1",
-    "karma-chrome-launcher": "^3.1.0",
+    "karma-jsdom-launcher": "^8.0.2",
     "karma-jasmine": "2.0.1",
     "karma-junit-reporter": "2.0.1",
-    "karma-phantomjs-launcher": "1.0.4",
     "karma-spec-reporter": "0.0.32",
     "less": "3.10.3",
     "lodash": "4.17.19",

src/Umbraco.Web.UI.Client/test/config/karma.conf.js

@@ -100,14 +100,7 @@ module.exports = function (config) {
         // - PhantomJS
         // - IE (only Windows)
         // CLI --browsers Chrome,Firefox,Safari
-        browsers: ['ChromeHeadless'],
-
-        customLaunchers: {
-            ChromeDebugging: {
-                base: 'Chrome',
-                flags: ['--remote-debugging-port=9333']
-            }
-        },
+        browsers: ['jsdom'],
 
         // allow waiting a bit longer, some machines require this
 
@@ -123,11 +116,9 @@ module.exports = function (config) {
 
         plugins: [
             require('karma-jasmine'),
-            require('karma-phantomjs-launcher'),
-            require('karma-chrome-launcher'),
+            require('karma-jsdom-launcher'),
             require('karma-junit-reporter'),
             require('karma-spec-reporter')
-
         ],
 
         // the default configuration