diff --git a/app/assets/javascripts/raven/raven_config.js b/app/assets/javascripts/raven/raven_config.js
index bb9be7cb196fbbcd41b3df971a636d27c91dc2cf..9c756a4130b74eaec291480b6ea45169de8b3811 100644
--- a/app/assets/javascripts/raven/raven_config.js
+++ b/app/assets/javascripts/raven/raven_config.js
@@ -1,5 +1,4 @@
 import Raven from 'raven-js';
-import $ from 'jquery';
 
 const RavenConfig = {
   init(options = {}) {
@@ -24,11 +23,12 @@ const RavenConfig = {
   },
 
   bindRavenErrors() {
-    $(document).on('ajaxError.raven', this.handleRavenErrors);
+    window.$(document).on('ajaxError.raven', this.handleRavenErrors);
   },
 
   handleRavenErrors(event, req, config, err) {
     const error = err || req.statusText;
+    const responseText = req.responseText || 'Unknown response text';
 
     Raven.captureMessage(error, {
       extra: {
@@ -36,7 +36,7 @@ const RavenConfig = {
         url: config.url,
         data: config.data,
         status: req.status,
-        response: req.responseText.substring(0, 100),
+        response: responseText.substring(0, 100),
         error,
         event,
       },
diff --git a/config/webpack.config.js b/config/webpack.config.js
index 79c1d66a242140f546c69b50ef9ad81c22bb903f..2153c8bbaf281a449603bafd67b5458a2aa11b31 100644
--- a/config/webpack.config.js
+++ b/config/webpack.config.js
@@ -15,7 +15,6 @@ var DEV_SERVER_HOST = process.env.DEV_SERVER_HOST || 'localhost';
 var DEV_SERVER_PORT = parseInt(process.env.DEV_SERVER_PORT, 10) || 3808;
 var DEV_SERVER_LIVERELOAD = process.env.DEV_SERVER_LIVERELOAD !== 'false';
 var WEBPACK_REPORT = process.env.WEBPACK_REPORT;
-var rewirePlugin = IS_PRODUCTION ? '?plugins=rewire' : '';
 
 var config = {
   context: path.join(ROOT_PATH, 'app/assets/javascripts'),
@@ -69,7 +68,7 @@ var config = {
       {
         test: /\.js$/,
         exclude: /(node_modules|vendor\/assets)/,
-        loader: `babel-loader${rewirePlugin}`,
+        loader: 'babel-loader',
       },
       {
         test: /\.vue$/,
diff --git a/package.json b/package.json
index cf66d7ec58e0a6b6f51ba20f817b512c18dd854c..4ac1526bba184bec04eb3746cb039f278e86b413 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,6 @@
   },
   "devDependencies": {
     "babel-plugin-istanbul": "^4.0.0",
-    "babel-plugin-rewire": "^1.1.0",
     "eslint": "^3.10.1",
     "eslint-config-airbnb-base": "^10.0.1",
     "eslint-import-resolver-webpack": "^0.8.1",
diff --git a/spec/javascripts/.eslintrc b/spec/javascripts/.eslintrc
index a3a8bb050c95ea9b89034138697280b718a2cbbd..3d922021978aac8315cbbd33dea2a7dc772a1062 100644
--- a/spec/javascripts/.eslintrc
+++ b/spec/javascripts/.eslintrc
@@ -27,19 +27,6 @@
     "jasmine/no-suite-dupes": [1, "branch"],
     "jasmine/no-spec-dupes": [1, "branch"],
     "no-console": 0,
-    "prefer-arrow-callback": 0,
-    "no-underscore-dangle": [
-      2,
-      {
-        "allow": [
-          "__GetDependency__",
-          "__Rewire__",
-          "__ResetDependency__",
-          "__get__",
-          "__set__",
-          "__RewireAPI__"
-        ]
-      }
-    ]
+    "prefer-arrow-callback": 0
   }
 }
diff --git a/spec/javascripts/raven/raven_config_spec.js b/spec/javascripts/raven/raven_config_spec.js
index b8bb558d22ea20c6528bb2ead7b2ee581fff9154..55f3949c7400875ff9fe126067823a9d5dff6686 100644
--- a/spec/javascripts/raven/raven_config_spec.js
+++ b/spec/javascripts/raven/raven_config_spec.js
@@ -1,5 +1,5 @@
 import Raven from 'raven-js';
-import RavenConfig, { __RewireAPI__ as RavenConfigRewire } from '~/raven/raven_config';
+import RavenConfig from '~/raven/raven_config';
 
 describe('RavenConfig', () => {
   describe('init', () => {
@@ -122,13 +122,13 @@ describe('RavenConfig', () => {
       $document = jasmine.createSpyObj('$document', ['on']);
       $ = jasmine.createSpy('$').and.returnValue($document);
 
-      RavenConfigRewire.__set__('$', $);
+      window.$ = $;
 
       RavenConfig.bindRavenErrors();
     });
 
     it('should query for document using jquery', () => {
-      expect($).toHaveBeenCalledWith(document);
+      expect(window.$).toHaveBeenCalledWith(document);
     });
 
     it('should call .on', function () {
@@ -188,5 +188,29 @@ describe('RavenConfig', () => {
         });
       });
     });
+
+    describe('if no req.responseText is provided', () => {
+      beforeEach(() => {
+        req.responseText = undefined;
+
+        Raven.captureMessage.calls.reset();
+
+        RavenConfig.handleRavenErrors(event, req, config, err);
+      });
+
+      it('should use `Unknown response text` as the response', () => {
+        expect(Raven.captureMessage).toHaveBeenCalledWith(err, {
+          extra: {
+            type: config.type,
+            url: config.url,
+            data: config.data,
+            status: req.status,
+            response: 'Unknown response text',
+            error: err,
+            event,
+          },
+        });
+      });
+    });
   });
 });
diff --git a/yarn.lock b/yarn.lock
index e41f737c88c92704a0b3e3bf90c2196989a03f23..dd169cf28ba812cac7c42bc2e45a4bceff2d130d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -425,10 +425,6 @@ babel-plugin-istanbul@^4.0.0:
     istanbul-lib-instrument "^1.4.2"
     test-exclude "^4.0.0"
 
-babel-plugin-rewire@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-rewire/-/babel-plugin-rewire-1.1.0.tgz#a6b966d9d8c06c03d95dcda2eec4e2521519549b"
-
 babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"