diff --git a/karma/config.js b/karma/config.js
index 4463cf767..fd7aea269 100644
--- a/karma/config.js
+++ b/karma/config.js
@@ -3,7 +3,6 @@
 const puppeteer = require('puppeteer');
 process.env.CHROME_BIN = puppeteer.executablePath();
 
-const webpack = require('webpack');
 const NodePolyfillPlugin = require('node-polyfill-webpack-plugin');
 
 module.exports = {
@@ -79,11 +78,7 @@ module.exports = {
       ]
     },
     plugins: [
-      new NodePolyfillPlugin(),
-      new webpack.DefinePlugin({
-        'process.env.NODE_ENV': JSON.stringify('test'),
-        __DEV__: true
-      })
+      new NodePolyfillPlugin()
     ],
     resolve: {
       extensions: ['.ts', '.js'],
diff --git a/package-lock.json b/package-lock.json
index 7768445cc..fedca55d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio",
-  "version": "10.17.3",
+  "version": "10.17.4-rc.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -437,9 +437,9 @@
       "dev": true
     },
     "@splitsoftware/splitio-commons": {
-      "version": "1.2.1-rc.5",
-      "resolved": "https://registry.npmjs.org/@splitsoftware/splitio-commons/-/splitio-commons-1.2.1-rc.5.tgz",
-      "integrity": "sha512-Pk5subG7tWke4KuXS3wBnxnsCZ6cNSFSGJsv/BLYmm5pH3SUTDTL0biq80xJdtzRET+9ESAvO8ECqzCePre7BA==",
+      "version": "1.2.1-rc.8",
+      "resolved": "https://registry.npmjs.org/@splitsoftware/splitio-commons/-/splitio-commons-1.2.1-rc.8.tgz",
+      "integrity": "sha512-K/qQZqBaJa4fssNJgTWtBMkWFlwJBKemSHhhlF+8hQnOv8Tra4tAz7ObPQwnZ9Esjdmd2jEd2SJ1LeSi9haIqQ==",
       "requires": {
         "tslib": "^2.3.1"
       }
diff --git a/package.json b/package.json
index 45f3b83f9..82ecf76a5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio",
-  "version": "10.17.3",
+  "version": "10.17.4-rc.0",
   "description": "Split SDK",
   "files": [
     "README.md",
@@ -32,7 +32,7 @@
     "node": ">=6"
   },
   "dependencies": {
-    "@splitsoftware/splitio-commons": "1.2.1-rc.5",
+    "@splitsoftware/splitio-commons": "1.2.1-rc.8",
     "@types/google.analytics": "0.0.40",
     "ioredis": "^4.28.0",
     "ip": "1.1.5",
diff --git a/src/__tests__/browser.spec.js b/src/__tests__/browser.spec.js
index bd40fece1..c1993c405 100644
--- a/src/__tests__/browser.spec.js
+++ b/src/__tests__/browser.spec.js
@@ -19,6 +19,7 @@ import useBeaconApiSuite from './browserSuites/use-beacon-api.spec';
 import useBeaconDebugApiSuite from './browserSuites/use-beacon-api.debug.spec';
 import readyPromiseSuite from './browserSuites/ready-promise.spec';
 import fetchSpecificSplits from './browserSuites/fetch-specific-splits.spec';
+import userConsent from './browserSuites/user-consent.spec';
 
 import { settingsFactory } from '../settings';
 
@@ -116,6 +117,8 @@ tape('## E2E CI Tests ##', function(assert) {
   /* Check shared clients */
   assert.test('E2E / Shared instances', sharedInstantiationSuite.bind(null, false, fetchMock));
   assert.test('E2E / Shared instances with Traffic Type on factory settings', sharedInstantiationSuite.bind(null, true, fetchMock));
+  /* Validate user consent */
+  assert.test('E2E / User consent', userConsent.bind(null, fetchMock));
   /* Check basic manager functionality */
   assert.test('E2E / Manager API', managerSuite.bind(null, settings, fetchMock));
   /* Validate readiness */
diff --git a/src/__tests__/browserSuites/user-consent.spec.js b/src/__tests__/browserSuites/user-consent.spec.js
new file mode 100644
index 000000000..84fa504e6
--- /dev/null
+++ b/src/__tests__/browserSuites/user-consent.spec.js
@@ -0,0 +1,186 @@
+import sinon from 'sinon';
+import { SplitFactory } from '../../';
+import { triggerUnloadEvent } from '../testUtils/browser';
+import { nearlyEqual, url } from '../testUtils';
+
+const trackedImpressions = [];
+
+const baseConfig = {
+  core: {
+    authorizationKey: '<fake-token>',
+    key: 'facundo@split.io'
+  },
+  startup: {
+    eventsFirstPushWindow: 0
+  },
+  urls: {
+    events: 'https://events.user-consent.io/api'
+  },
+  streamingEnabled: false,
+  impressionListener: {
+    logImpression: (impression) => {
+      trackedImpressions.push(impression);
+    }
+  }
+};
+
+const usageFlows = [{
+  // Consent granted after usage: user consent is unknown initially, and then set to granted
+  initialUserConsent: 'UNKNOWN',
+  setUserConsent: true,
+}, {
+  // Consent declined after usage: user consent is unknown initially, and then set to declined
+  initialUserConsent: 'UNKNOWN',
+  setUserConsent: false,
+}, {
+  // Consent granted before usage (default behavior): userConsent config param is granted
+  initialUserConsent: 'GRANTED',
+  setUserConsent: true, // no transition
+}, {
+  // Consent granted before usage (default behavior): userConsent config param is not defined
+  initialUserConsent: undefined,
+  setUserConsent: true, // no transition
+}, {
+  // Consent declined before usage: userConsent config param is declined
+  initialUserConsent: 'DECLINED',
+  setUserConsent: false, // no transition
+}, {
+  // Consent granted after declined: user consent is declined initially, and then set to granted
+  initialUserConsent: 'DECLINED',
+  setUserConsent: true,
+}, {
+  // Consent declined after granted: user consent is granted initially, and then set to declined
+  initialUserConsent: 'GRANTED',
+  setUserConsent: false,
+}];
+
+function mockSubmittersRequests(fetchMock, assert, impressionFeature, eventTypeId) {
+  fetchMock.postOnce(url(baseConfig, '/testImpressions/count'), 200); // OPTIMIZED impressions mode
+  fetchMock.postOnce(url(baseConfig, '/testImpressions/bulk'), (url, opts) => {
+    const resp = JSON.parse(opts.body);
+    assert.equal(resp[0].f, impressionFeature, 'The expected impression is submitted');
+    assert.equal(resp[0].i.length, 2, '2 impressions are expected');
+    return 200;
+  });
+  fetchMock.postOnce(url(baseConfig, '/events/bulk'), (url, opts) => {
+    const resp = JSON.parse(opts.body);
+    assert.equal(resp[0].eventTypeId, eventTypeId, 'The expected event is submitted');
+    assert.equal(resp.length, 2, '2 events are expected');
+    return 200;
+  });
+}
+
+export default function userConsent(fetchMock, t) {
+
+  // Validate trackers, submitters and browser listener behaviour on different consent status transitions
+  t.test(async (assert) => {
+    const sendBeaconSpy = sinon.spy(window.navigator, 'sendBeacon');
+    let expectedTrackedImpressions = 0;
+
+    for (let i = 0; i < usageFlows.length; i++) {
+      const { initialUserConsent, setUserConsent } = usageFlows[i];
+      const config = { ...baseConfig, userConsent: initialUserConsent };
+      const factory = SplitFactory(config);
+      const client = factory.client();
+      const sharedClient = factory.client('marcio@split.io');
+
+      await client.ready();
+      await sharedClient.ready();
+
+      let isTracking = factory.getUserConsent() !== 'DECLINED';
+      assert.deepEqual([client.track('user', 'event1'), sharedClient.track('user', 'event1')], [isTracking, isTracking], 'tracking events on SDK ready');
+      assert.deepEqual([
+        client.getTreatment('always_on'), sharedClient.getTreatment('always_on'),
+        client.getTreatments(['always_on'])['always_on'], sharedClient.getTreatments(['always_on'])['always_on'],
+        client.getTreatmentWithConfig('always_on').treatment, sharedClient.getTreatmentWithConfig('always_on').treatment,
+        client.getTreatmentsWithConfig(['always_on'])['always_on'].treatment, sharedClient.getTreatmentsWithConfig(['always_on'])['always_on'].treatment,
+      ], ['on', 'on', 'on', 'on', 'on', 'on', 'on', 'on'], 'evaluating on SDK ready');
+      if (isTracking) expectedTrackedImpressions += 8;
+
+      // Trigger unload event to validate browser listener behaviour
+      // Beacon API is used only if user consent is GRANTED
+      triggerUnloadEvent();
+      if (factory.getUserConsent() === 'GRANTED') {
+        assert.ok(sendBeaconSpy.calledThrice, 'sendBeacon should have been called thrice');
+      } else {
+        assert.ok(sendBeaconSpy.notCalled, 'sendBeacon should not be called if user consent is not granted');
+      }
+      sendBeaconSpy.resetHistory();
+
+      // If transitioning from UNKNOWN to GRANTED, data was tracked and will be submitted
+      if (factory.getUserConsent() === 'UNKNOWN' && setUserConsent) {
+        mockSubmittersRequests(fetchMock, assert, 'always_on', 'event1');
+      }
+      if (setUserConsent !== undefined) factory.setUserConsent(setUserConsent);
+
+      // Await to track events and impressions with empty queues
+      await new Promise(res => setTimeout(res));
+      isTracking = factory.getUserConsent() !== 'DECLINED';
+      assert.deepEqual([client.track('user', 'event2'), sharedClient.track('user', 'event2')], [isTracking, isTracking], 'tracking events after updating user consent');
+      assert.deepEqual([
+        client.getTreatment('always_off'), sharedClient.getTreatment('always_off'),
+        client.getTreatments(['always_off'])['always_off'], sharedClient.getTreatments(['always_off'])['always_off'],
+        client.getTreatmentWithConfig('always_off').treatment, sharedClient.getTreatmentWithConfig('always_off').treatment,
+        client.getTreatmentsWithConfig(['always_off'])['always_off'].treatment, sharedClient.getTreatmentsWithConfig(['always_off'])['always_off'].treatment,
+      ], ['off', 'off', 'off', 'off', 'off', 'off', 'off', 'off'], 'evaluating after updating user consent');
+      if (isTracking) expectedTrackedImpressions += 8;
+
+      // If destroyed while user consent is GRANTED, last tracked data is submitted
+      if (factory.getUserConsent() === 'GRANTED') {
+        mockSubmittersRequests(fetchMock, assert, 'always_off', 'event2');
+      }
+      await sharedClient.destroy();
+      await client.destroy();
+
+    }
+
+    assert.equal(trackedImpressions.length, expectedTrackedImpressions, 'Tracked impressions are the expected');
+    sendBeaconSpy.restore();
+    assert.end();
+  }, 'Validate trackers, submitters and browser listener behaviour on different consent status transitions');
+
+  // Validate submitter's behaviour with full queues and with events first push window
+  t.test(async (assert) => {
+    const config = {
+      ...baseConfig,
+      userConsent: 'UNKNOWN',
+      scheduler: {
+        eventsQueueSize: 1,
+        impressionsQueueSize: 1
+      },
+      startup: {
+        eventsFirstPushWindow: 0.1 // 100 millis
+      },
+    };
+    const factory = SplitFactory(config);
+    const client = factory.client();
+
+    await client.ready();
+
+    assert.equal(client.track('user', 'event1'), true, 'Events queue is full, but submitter is not executed');
+    assert.equal(client.getTreatment('always_on'), 'on', 'Impressions queue is full, but submitter is not executed');
+
+    let submitterCalls = 0;
+    const start = Date.now();
+    fetchMock.postOnce(url(baseConfig, '/testImpressions/count'), () => { submitterCalls++; return 200; }); // OPTIMIZED impressions mode
+    fetchMock.postOnce(url(baseConfig, '/testImpressions/bulk'), () => { submitterCalls++; return 200; });
+    fetchMock.postOnce(url(baseConfig, '/events/bulk'), () => {
+      const lapseSinceConsentGranted = Date.now() - start;
+      assert.true(nearlyEqual(lapseSinceConsentGranted, config.startup.eventsFirstPushWindow * 1000), 'Events should be posted considering first push window');
+      submitterCalls++; return 200;
+    });
+
+    factory.setUserConsent(true);
+
+    assert.equal(submitterCalls, 2, 'Submitter is resumed and POST requests executed when consent status change to GRANTED, except for events due to first push window');
+
+    // Awaits until events PUSH request is resolved
+    await new Promise(res => setTimeout(res, config.startup.eventsFirstPushWindow * 1000 + 50));
+    assert.equal(submitterCalls, 3, 'Events POST requests have been executed');
+
+    await client.destroy();
+
+    assert.end();
+  }, 'Validate submitter\'s behaviour with full queues and with events first push window');
+
+}
diff --git a/src/__tests__/destroy/browser.spec.js b/src/__tests__/destroy/browser.spec.js
index dea476523..e61e9aaf0 100644
--- a/src/__tests__/destroy/browser.spec.js
+++ b/src/__tests__/destroy/browser.spec.js
@@ -107,23 +107,23 @@ tape('SDK destroy for BrowserJS', async function (assert) {
   assert.equal(client3.getTreatment('Single_Test'), 'control', 'After destroy, getTreatment returns control for every destroyed client.');
   assert.deepEqual(client3.getTreatments(['Single_Test']), { 'Single_Test': 'control' }, 'After destroy, getTreatments returns map of controls for every destroyed client.');
   assert.ok(manager.names().length > 0, 'control assertion');
-  assert.notOk(client3.track('tt2', 'otherEventType', 3),  'After destroy, track calls return false.');
+  assert.notOk(client3.track('tt2', 'otherEventType', 3), 'After destroy, track calls return false.');
 
   await client2.destroy();
   assert.equal(client2.getTreatment('Single_Test'), 'control', 'After destroy, getTreatment returns control for every destroyed client.');
   assert.deepEqual(client2.getTreatments(['Single_Test']), { 'Single_Test': 'control' }, 'After destroy, getTreatments returns map of controls for every destroyed client.');
   assert.ok(manager.names().length > 0, 'control assertion');
-  assert.notOk(client2.track('tt', 'eventType', 2),  'After destroy, track calls return false.');
+  assert.notOk(client2.track('tt', 'eventType', 2), 'After destroy, track calls return false.');
 
   await client.destroy();
   fetchMock.restore();
 
   assert.equal(client.getTreatment('Single_Test'), 'control', 'After destroy, getTreatment returns control for every destroyed client.');
   assert.deepEqual(client.getTreatments(['Single_Test']), { 'Single_Test': 'control' }, 'After destroy, getTreatments returns map of controls for every destroyed client.');
-  assert.notOk(client2.track('tt2', 'eventType', 1),  'After destroy, track calls return false.');
+  assert.notOk(client2.track('tt2', 'eventType', 1), 'After destroy, track calls return false.');
 
   assert.equal(manager.splits().length, 0, 'After the main client is destroyed, manager.splits will return empty array');
-  assert.equal(manager.names().length,  0, 'After the main client is destroyed, manager.names will return empty array');
+  assert.equal(manager.names().length, 0, 'After the main client is destroyed, manager.names will return empty array');
   assert.equal(manager.split('Single_Test'), null, 'After the main client is destroyed, manager.split will return null');
 
   assert.end();
diff --git a/src/__tests__/destroy/node.spec.js b/src/__tests__/destroy/node.spec.js
index 1da87e25e..e24b3c8ef 100644
--- a/src/__tests__/destroy/node.spec.js
+++ b/src/__tests__/destroy/node.spec.js
@@ -57,8 +57,8 @@ tape('SDK destroy for NodeJS', async function (assert) {
   });
 
   // Events tracking do not need to wait for ready.
-  client.track('nicolas.zelaya@split.io','tt', 'invalidEventType', 'invalid value' /* Invalid values are not tracked */);
-  client.track('nicolas.zelaya@gmail.com','tt', 'validEventType', 1);
+  client.track('nicolas.zelaya@split.io', 'tt', 'invalidEventType', 'invalid value' /* Invalid values are not tracked */);
+  client.track('nicolas.zelaya@gmail.com', 'tt', 'validEventType', 1);
 
   // Assert we are sending the events while doing the destroy
   fetchMock.postOnce(url(settings, '/events/bulk'), (url, opts) => {
@@ -86,14 +86,14 @@ tape('SDK destroy for NodeJS', async function (assert) {
 
   await destroyPromise;
 
-  assert.equal( client.getTreatment('ut1', 'Single_Test'), 'control', 'After destroy, getTreatment returns control.');
-  assert.deepEqual( client.getTreatments('ut1', ['Single_Test', 'another_split']), {
+  assert.equal(client.getTreatment('ut1', 'Single_Test'), 'control', 'After destroy, getTreatment returns control.');
+  assert.deepEqual(client.getTreatments('ut1', ['Single_Test', 'another_split']), {
     Single_Test: 'control', another_split: 'control'
   }, 'After destroy, getTreatments returns a map of control.');
-  assert.notOk( client.track('key', 'tt', 'event'),  'After destroy, track calls return false.');
-  assert.equal( manager.splits().length , 0 , 'After destroy, manager.splits returns empty array.');
-  assert.equal( manager.names().length ,  0 , 'After destroy, manager.names returns empty array.');
-  assert.equal( manager.split('Single_Test') , null , 'After destroy, manager.split returns null.');
+  assert.notOk(client.track('key', 'tt', 'event'), 'After destroy, track calls return false.');
+  assert.equal(manager.splits().length, 0, 'After destroy, manager.splits returns empty array.');
+  assert.equal(manager.names().length, 0, 'After destroy, manager.names returns empty array.');
+  assert.equal(manager.split('Single_Test'), null, 'After destroy, manager.split returns null.');
 
   assert.end();
 });
diff --git a/src/__tests__/nodeSuites/evaluations.spec.js b/src/__tests__/nodeSuites/evaluations.spec.js
index 7909aa5b5..4e76750c6 100644
--- a/src/__tests__/nodeSuites/evaluations.spec.js
+++ b/src/__tests__/nodeSuites/evaluations.spec.js
@@ -259,6 +259,9 @@ export default async function(config, key, assert) {
     assert.deepEqual(client.getAttributes, undefined, 'should not be available');
     assert.deepEqual(client.clearAttributes, undefined, 'should not be available');
 
+    assert.deepEqual(splitio.setUserConsent, undefined, 'setUserConsent should not be available');
+    assert.deepEqual(splitio.getUserConsent, undefined, 'getUserConsent should not be available');
+
     getTreatmentTests(client, i);
     getTreatmentsTests(client, i);
     getTreatmentsWithConfigTests(client, i);
diff --git a/src/factory/browser.js b/src/factory/browser.js
index 323faf9cb..5745fcb98 100644
--- a/src/factory/browser.js
+++ b/src/factory/browser.js
@@ -50,8 +50,6 @@ function getModules(settings) {
 
     SignalListener,
 
-    impressionListener: settings.impressionListener,
-
     integrationsManagerFactory: settings.integrations && settings.integrations.length > 0 ? integrationsManagerFactory.bind(null, settings.integrations) : undefined,
 
     impressionsObserverFactory: shouldAddPt(settings) ? impressionObserverCSFactory : undefined,
diff --git a/src/factory/node.js b/src/factory/node.js
index 99b762a89..b01a3dfd4 100644
--- a/src/factory/node.js
+++ b/src/factory/node.js
@@ -45,8 +45,6 @@ function getModules(settings) {
 
     SignalListener,
 
-    impressionListener: settings.impressionListener,
-
     impressionsObserverFactory: shouldAddPt(settings) ? impressionObserverSSFactory : undefined,
   };
 
diff --git a/src/settings/__tests__/browser.spec.js b/src/settings/__tests__/browser.spec.js
index 225b802ab..0a37e0772 100644
--- a/src/settings/__tests__/browser.spec.js
+++ b/src/settings/__tests__/browser.spec.js
@@ -41,5 +41,8 @@ tape('SETTINGS / Consent is overwritable and "GRANTED" by default in client-side
   settings = settingsFactory({ userConsent: 'UNKNOWN' });
   assert.equal(settings.userConsent, 'UNKNOWN', 'userConsent can be overwritten.');
 
+  settings = settingsFactory({ userConsent: 'declined' });
+  assert.equal(settings.userConsent, 'DECLINED', 'userConsent can be overwritten.');
+
   assert.end();
 });
diff --git a/src/settings/defaults/version.js b/src/settings/defaults/version.js
index db8d48cef..bac3b57cd 100644
--- a/src/settings/defaults/version.js
+++ b/src/settings/defaults/version.js
@@ -1 +1 @@
-export const packageVersion = '10.17.3';
+export const packageVersion = '10.17.4-rc.0';
diff --git a/types/splitio.d.ts b/types/splitio.d.ts
index e8ef67730..0f5b19198 100644
--- a/types/splitio.d.ts
+++ b/types/splitio.d.ts
@@ -1316,7 +1316,7 @@ declare namespace SplitIO {
     /**
      * Add an attribute to client's in memory attributes storage.
      *
-     * @param {string} attributeName Attrinute name
+     * @param {string} attributeName Attribute name
      * @param {AttributeType} attributeValue Attribute value
      * @returns {boolean} true if the attribute was stored and false otherwise
      */