diff --git a/karma.conf.js b/karma.conf.js
index 0585210..8cdfd16 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -61,7 +61,7 @@ module.exports = function(config) {
 
         // start these browsers
         // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-        browsers: ['PhantomJS'],
+        browsers: ['jsdom'],
 
         // Continuous Integration mode
         // if true, Karma captures browsers, runs the tests and exits
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index c230754..a0836b5 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -2,6 +2,12 @@
   "name": "ely-by-account",
   "version": "1.0.0",
   "dependencies": {
+    "abab": {
+      "version": "1.0.3",
+      "from": "abab@>=1.0.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.3.tgz",
+      "dev": true
+    },
     "abbrev": {
       "version": "1.0.9",
       "from": "abbrev@>=1.0.0 <2.0.0",
@@ -40,6 +46,20 @@
       "resolved": "https://registry.npmjs.org/acorn-babel/-/acorn-babel-0.11.1-38.tgz",
       "dev": true
     },
+    "acorn-globals": {
+      "version": "1.0.9",
+      "from": "acorn-globals@>=1.0.4 <2.0.0",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-1.0.9.tgz",
+      "dev": true,
+      "dependencies": {
+        "acorn": {
+          "version": "2.7.0",
+          "from": "acorn@^2.1.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-2.7.0.tgz",
+          "dev": true
+        }
+      }
+    },
     "acorn-jsx": {
       "version": "3.0.1",
       "from": "acorn-jsx@>=3.0.0 <4.0.0",
@@ -168,6 +188,12 @@
       "resolved": "https://registry.npmjs.org/array-changes-async/-/array-changes-async-3.0.0.tgz",
       "dev": true
     },
+    "array-equal": {
+      "version": "1.0.0",
+      "from": "array-equal@>=1.0.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
+      "dev": true
+    },
     "array-find-index": {
       "version": "1.0.2",
       "from": "array-find-index@>=1.0.1 <2.0.0",
@@ -1697,6 +1723,12 @@
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.2.tgz",
       "dev": true
     },
+    "content-type-parser": {
+      "version": "1.0.1",
+      "from": "content-type-parser@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/content-type-parser/-/content-type-parser-1.0.1.tgz",
+      "dev": true
+    },
     "convert-source-map": {
       "version": "1.3.0",
       "from": "convert-source-map@>=1.1.0 <2.0.0",
@@ -1822,6 +1854,18 @@
       "resolved": "https://registry.npmjs.org/csso/-/csso-2.2.1.tgz",
       "dev": true
     },
+    "cssom": {
+      "version": "0.3.1",
+      "from": "cssom@>=0.3.0 <0.4.0",
+      "resolved": "https://registry.npmjs.org/cssom/-/cssom-0.3.1.tgz",
+      "dev": true
+    },
+    "cssstyle": {
+      "version": "0.2.37",
+      "from": "cssstyle@>=0.2.36 <0.3.0",
+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-0.2.37.tgz",
+      "dev": true
+    },
     "cubic2quad": {
       "version": "1.1.0",
       "from": "cubic2quad@>=1.0.0 <2.0.0",
@@ -2266,12 +2310,6 @@
       "resolved": "https://registry.npmjs.org/es6-map/-/es6-map-0.1.4.tgz",
       "dev": true
     },
-    "es6-promise": {
-      "version": "4.0.5",
-      "from": "es6-promise@>=4.0.3 <4.1.0",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.0.5.tgz",
-      "dev": true
-    },
     "es6-set": {
       "version": "0.1.4",
       "from": "es6-set@>=0.1.3 <0.2.0",
@@ -2314,6 +2352,27 @@
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "dev": true
     },
+    "escodegen": {
+      "version": "1.8.1",
+      "from": "escodegen@>=1.6.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.8.1.tgz",
+      "dev": true,
+      "dependencies": {
+        "estraverse": {
+          "version": "1.9.3",
+          "from": "estraverse@>=1.9.1 <2.0.0",
+          "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-1.9.3.tgz",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.2.0",
+          "from": "source-map@>=0.2.0 <0.3.0",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.2.0.tgz",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "escope": {
       "version": "3.6.0",
       "from": "escope@>=3.6.0 <4.0.0",
@@ -2541,38 +2600,6 @@
       "resolved": "https://registry.npmjs.org/extract-text-webpack-plugin/-/extract-text-webpack-plugin-1.0.1.tgz",
       "dev": true
     },
-    "extract-zip": {
-      "version": "1.5.0",
-      "from": "extract-zip@>=1.5.0 <1.6.0",
-      "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-1.5.0.tgz",
-      "dev": true,
-      "dependencies": {
-        "concat-stream": {
-          "version": "1.5.0",
-          "from": "concat-stream@1.5.0",
-          "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.5.0.tgz",
-          "dev": true
-        },
-        "debug": {
-          "version": "0.7.4",
-          "from": "debug@0.7.4",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-0.7.4.tgz",
-          "dev": true
-        },
-        "mkdirp": {
-          "version": "0.5.0",
-          "from": "mkdirp@0.5.0",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.0.tgz",
-          "dev": true
-        },
-        "readable-stream": {
-          "version": "2.0.6",
-          "from": "readable-stream@>=2.0.0 <2.1.0",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
-          "dev": true
-        }
-      }
-    },
     "extsprintf": {
       "version": "1.0.2",
       "from": "extsprintf@1.0.2",
@@ -2622,12 +2649,6 @@
         }
       }
     },
-    "fd-slicer": {
-      "version": "1.0.1",
-      "from": "fd-slicer@>=1.0.1 <1.1.0",
-      "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.0.1.tgz",
-      "dev": true
-    },
     "figures": {
       "version": "1.7.0",
       "from": "figures@>=1.3.5 <2.0.0",
@@ -2799,12 +2820,6 @@
       "dev": true,
       "optional": true
     },
-    "fs-extra": {
-      "version": "0.30.0",
-      "from": "fs-extra@>=0.30.0 <0.31.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
-      "dev": true
-    },
     "fs-readdir-recursive": {
       "version": "0.1.2",
       "from": "fs-readdir-recursive@>=0.1.0 <0.2.0",
@@ -3026,12 +3041,6 @@
       "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
       "dev": true
     },
-    "hasha": {
-      "version": "2.2.0",
-      "from": "hasha@>=2.2.0 <2.3.0",
-      "resolved": "https://registry.npmjs.org/hasha/-/hasha-2.2.0.tgz",
-      "dev": true
-    },
     "hawk": {
       "version": "3.1.3",
       "from": "hawk@>=3.1.3 <3.2.0",
@@ -3084,6 +3093,12 @@
       "resolved": "https://registry.npmjs.org/html-comment-regex/-/html-comment-regex-1.1.1.tgz",
       "dev": true
     },
+    "html-encoding-sniffer": {
+      "version": "1.0.1",
+      "from": "html-encoding-sniffer@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-1.0.1.tgz",
+      "dev": true
+    },
     "html-loader": {
       "version": "0.4.4",
       "from": "html-loader@>=0.4.3 <0.5.0",
@@ -3630,6 +3645,20 @@
       "dev": true,
       "optional": true
     },
+    "jsdom": {
+      "version": "9.8.3",
+      "from": "jsdom@latest",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-9.8.3.tgz",
+      "dev": true,
+      "dependencies": {
+        "acorn": {
+          "version": "2.7.0",
+          "from": "acorn@>=2.4.0 <3.0.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-2.7.0.tgz",
+          "dev": true
+        }
+      }
+    },
     "jsesc": {
       "version": "1.3.0",
       "from": "jsesc@>=1.3.0 <2.0.0",
@@ -3811,6 +3840,12 @@
         }
       }
     },
+    "karma-jsdom-launcher": {
+      "version": "5.0.0",
+      "from": "karma-jsdom-launcher@latest",
+      "resolved": "https://registry.npmjs.org/karma-jsdom-launcher/-/karma-jsdom-launcher-5.0.0.tgz",
+      "dev": true
+    },
     "karma-mocha": {
       "version": "1.3.0",
       "from": "karma-mocha@>=1.0.0 <2.0.0",
@@ -3831,12 +3866,6 @@
       "resolved": "https://registry.npmjs.org/karma-nyan-reporter/-/karma-nyan-reporter-0.2.4.tgz",
       "dev": true
     },
-    "karma-phantomjs-launcher": {
-      "version": "1.0.2",
-      "from": "karma-phantomjs-launcher@*",
-      "resolved": "https://registry.npmjs.org/karma-phantomjs-launcher/-/karma-phantomjs-launcher-1.0.2.tgz",
-      "dev": true
-    },
     "karma-sinon": {
       "version": "1.0.5",
       "from": "karma-sinon@>=1.0.4 <2.0.0",
@@ -3875,24 +3904,12 @@
         }
       }
     },
-    "kew": {
-      "version": "0.7.0",
-      "from": "kew@>=0.7.0 <0.8.0",
-      "resolved": "https://registry.npmjs.org/kew/-/kew-0.7.0.tgz",
-      "dev": true
-    },
     "kind-of": {
       "version": "3.0.4",
       "from": "kind-of@>=3.0.2 <4.0.0",
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.0.4.tgz",
       "dev": true
     },
-    "klaw": {
-      "version": "1.3.1",
-      "from": "klaw@>=1.0.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/klaw/-/klaw-1.3.1.tgz",
-      "dev": true
-    },
     "lazy-cache": {
       "version": "1.0.4",
       "from": "lazy-cache@>=1.0.3 <2.0.0",
@@ -4671,6 +4688,12 @@
       "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
       "dev": true
     },
+    "nwmatcher": {
+      "version": "1.3.9",
+      "from": "nwmatcher@>=1.3.7 <2.0.0",
+      "resolved": "https://registry.npmjs.org/nwmatcher/-/nwmatcher-1.3.9.tgz",
+      "dev": true
+    },
     "oauth-sign": {
       "version": "0.8.2",
       "from": "oauth-sign@>=0.8.1 <0.9.0",
@@ -4866,6 +4889,12 @@
       "resolved": "https://registry.npmjs.org/parse-key/-/parse-key-0.2.1.tgz",
       "dev": true
     },
+    "parse5": {
+      "version": "1.5.1",
+      "from": "parse5@>=1.5.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-1.5.1.tgz",
+      "dev": true
+    },
     "parsejson": {
       "version": "0.0.1",
       "from": "parsejson@0.0.1",
@@ -4964,23 +4993,11 @@
       "resolved": "https://registry.npmjs.org/pbkdf2-compat/-/pbkdf2-compat-2.0.1.tgz",
       "dev": true
     },
-    "pend": {
-      "version": "1.2.0",
-      "from": "pend@>=1.2.0 <1.3.0",
-      "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
-      "dev": true
-    },
     "performance-now": {
       "version": "0.2.0",
       "from": "performance-now@>=0.2.0 <0.3.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz"
     },
-    "phantomjs-prebuilt": {
-      "version": "2.1.13",
-      "from": "phantomjs-prebuilt@>=2.0.0 <3.0.0",
-      "resolved": "https://registry.npmjs.org/phantomjs-prebuilt/-/phantomjs-prebuilt-2.1.13.tgz",
-      "dev": true
-    },
     "pify": {
       "version": "2.3.0",
       "from": "pify@>=2.0.0 <3.0.0",
@@ -5928,12 +5945,6 @@
       "resolved": "https://registry.npmjs.org/request/-/request-2.74.0.tgz",
       "dev": true
     },
-    "request-progress": {
-      "version": "2.0.1",
-      "from": "request-progress@>=2.0.1 <2.1.0",
-      "resolved": "https://registry.npmjs.org/request-progress/-/request-progress-2.0.1.tgz",
-      "dev": true
-    },
     "require-directory": {
       "version": "2.1.1",
       "from": "require-directory@>=2.1.1 <3.0.0",
@@ -6641,6 +6652,12 @@
       "from": "symbol-observable@>=1.0.2 <2.0.0",
       "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.0.4.tgz"
     },
+    "symbol-tree": {
+      "version": "3.1.4",
+      "from": "symbol-tree@>=3.1.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.1.4.tgz",
+      "dev": true
+    },
     "systemjs": {
       "version": "0.19.41",
       "from": "systemjs@0.19.41",
@@ -6717,12 +6734,6 @@
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
       "dev": true
     },
-    "throttleit": {
-      "version": "1.0.0",
-      "from": "throttleit@>=1.0.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/throttleit/-/throttleit-1.0.0.tgz",
-      "dev": true
-    },
     "through": {
       "version": "2.3.8",
       "from": "through@>=2.3.6 <3.0.0",
@@ -6792,6 +6803,12 @@
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
       "dev": true
     },
+    "tr46": {
+      "version": "0.0.3",
+      "from": "tr46@>=0.0.3 <0.1.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "dev": true
+    },
     "traceur": {
       "version": "0.0.105",
       "from": "traceur@0.0.105",
@@ -7246,6 +7263,12 @@
       "resolved": "https://registry.npmjs.org/webfonts-generator/-/webfonts-generator-0.3.5.tgz",
       "dev": true
     },
+    "webidl-conversions": {
+      "version": "3.0.1",
+      "from": "webidl-conversions@>=3.0.1 <4.0.0",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "dev": true
+    },
     "webpack": {
       "version": "1.13.3",
       "from": "webpack@>=1.12.9 <2.0.0",
@@ -7368,11 +7391,23 @@
       "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.1.tgz",
       "dev": true
     },
+    "whatwg-encoding": {
+      "version": "1.0.1",
+      "from": "whatwg-encoding@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.1.tgz",
+      "dev": true
+    },
     "whatwg-fetch": {
       "version": "2.0.1",
       "from": "whatwg-fetch@2.0.1",
       "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.1.tgz"
     },
+    "whatwg-url": {
+      "version": "3.1.0",
+      "from": "whatwg-url@>=3.0.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-3.1.0.tgz",
+      "dev": true
+    },
     "when": {
       "version": "3.7.7",
       "from": "when@>=3.7.5 <4.0.0",
@@ -7471,6 +7506,12 @@
       "resolved": "https://registry.npmjs.org/xml-char-classes/-/xml-char-classes-1.0.0.tgz",
       "dev": true
     },
+    "xml-name-validator": {
+      "version": "2.0.1",
+      "from": "xml-name-validator@>=2.0.1 <3.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-2.0.1.tgz",
+      "dev": true
+    },
     "xmldom": {
       "version": "0.1.22",
       "from": "xmldom@>=0.1.22 <0.2.0",
@@ -7521,12 +7562,6 @@
         }
       }
     },
-    "yauzl": {
-      "version": "2.4.1",
-      "from": "yauzl@2.4.1",
-      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
-      "dev": true
-    },
     "yeast": {
       "version": "0.1.2",
       "from": "yeast@0.1.2",
diff --git a/package.json b/package.json
index 53b2886..483eedd 100644
--- a/package.json
+++ b/package.json
@@ -64,18 +64,18 @@
     "html-loader": "^0.4.3",
     "html-webpack-plugin": "^2.0.0",
     "imports-loader": "^0.6.5",
+    "jsdom": "^9.8.3",
     "json-loader": "^0.5.4",
     "karma": "^1.1.0",
+    "karma-jsdom-launcher": "^5.0.0",
     "karma-mocha": "^1.0.0",
     "karma-nyan-reporter": "^0.2.3",
-    "karma-phantomjs-launcher": "*",
     "karma-sinon": "^1.0.4",
     "karma-sourcemap-loader": "*",
     "karma-webpack": "^1.5.1",
     "loader-utils": "^0.2.15",
     "mocha": "^3.0.2",
     "node-sass": "^3.4.2",
-    "phantomjs-prebuilt": "^2.0.0",
     "postcss-import": "^8.1.2",
     "postcss-loader": "^1.0.0",
     "postcss-scss": "^0.4.0",
diff --git a/tests/index.js b/tests/index.js
index 89552f2..05f13ad 100644
--- a/tests/index.js
+++ b/tests/index.js
@@ -3,6 +3,24 @@ import 'polyfills';
 import expect from 'unexpected';
 expect.use(require('unexpected-sinon'));
 
+if (!window.localStorage) {
+    window.localStorage = {
+        getItem(key) {
+            return this[key];
+        },
+        setItem(key, value) {
+            this[key] = value;
+        },
+        removeItem(key) {
+            delete this[key];
+        }
+    };
+
+    window.sessionStorage = {
+        ...window.localStorage
+    };
+}
+
 // require all modules ending in "_test" from the
 // current directory and all subdirectories
 const testsContext = require.context('.', true, /\.test\.jsx?$/);
diff --git a/tests/services/authFlow/AuthFlow.test.js b/tests/services/authFlow/AuthFlow.test.js
index 7d00a2c..ac8eee7 100644
--- a/tests/services/authFlow/AuthFlow.test.js
+++ b/tests/services/authFlow/AuthFlow.test.js
@@ -30,8 +30,8 @@ describe('AuthFlow', () => {
     });
 
     it('should not allow to mutate actions', () => {
-        expect(() => flow.actions.foo = 'bar', 'to throw', /readonly/);
-        expect(() => flow.actions.test = 'hacked', 'to throw', /readonly/);
+        expect(() => flow.actions.foo = 'bar', 'to throw', /readonly|not extensible/);
+        expect(() => flow.actions.test = 'hacked', 'to throw', /read ?only/);
     });
 
     describe('#setStore', () => {