diff --git a/javascript/node/selenium-webdriver/lib/webdriver.js b/javascript/node/selenium-webdriver/lib/webdriver.js
index 2dd4f6dd332dd..64e407db3996c 100644
--- a/javascript/node/selenium-webdriver/lib/webdriver.js
+++ b/javascript/node/selenium-webdriver/lib/webdriver.js
@@ -1111,7 +1111,7 @@ class Options {
    *     invalid.
    * @throws {TypeError} if `spec` is not a cookie object.
    */
-  addCookie({name, value, path, domain, secure, httpOnly, expiry}) {
+  addCookie({name, value, path, domain, secure, httpOnly, expiry, sameSite}) {
     // We do not allow '=' or ';' in the name.
     if (/[;=]/.test(name)) {
       throw new error.InvalidArgumentError(
@@ -1131,6 +1131,11 @@ class Options {
       expiry = Math.floor(date.getTime() / 1000);
     }
 
+    if(sameSite && sameSite !== 'Strict' && sameSite !== 'Lax') {
+      throw new error.InvalidArgumentError(
+          `Invalid sameSite cookie value '${sameSite}'. It should be either "Lax" (or) "Strict" `);
+    }
+
     return this.driver_.execute(
         new command.Command(command.Name.ADD_COOKIE).
             setParameter('cookie', {
@@ -1140,7 +1145,8 @@ class Options {
               'domain': domain,
               'secure': !!secure,
               'httpOnly': !!httpOnly,
-              'expiry': expiry
+              'expiry': expiry,
+              'sameSite': sameSite
             }));
   }
 
@@ -1399,6 +1405,17 @@ Options.Cookie.prototype.httpOnly;
 Options.Cookie.prototype.expiry;
 
 
+/**
+ * When the cookie applies to a SameSite policy.
+ *
+ * When {@linkplain Options#addCookie() adding a cookie}, this may be specified
+ * as a {@link string} object which is either 'Lax' or 'Strict'.
+ *
+ *
+ * @type {(!Date|number|undefined)}
+ */
+Options.Cookie.prototype.sameSite;
+
 /**
  * An interface for managing the current window.
  *
diff --git a/javascript/node/selenium-webdriver/test/cookie_test.js b/javascript/node/selenium-webdriver/test/cookie_test.js
index b124fcf367487..04d2ed737d5f0 100644
--- a/javascript/node/selenium-webdriver/test/cookie_test.js
+++ b/javascript/node/selenium-webdriver/test/cookie_test.js
@@ -168,6 +168,24 @@ suite(function(env) {
       await driver.sleep(expirationDelay);
       await assertHasCookies();
     });
+
+    it('can add same site cookie property to `Strict`', async function() {
+      let cookie = createSameSiteCookieSpec('Strict');
+      let childUrl = fileserver.whereIs('child/childPage.html');
+      await driver.get(childUrl);
+      await driver.manage().addCookie(cookie);
+      const actual = await driver.manage().getCookie(cookie.name);
+      assert.equal(actual.sameSite, "Strict");
+    });
+
+    it('can add same site cookie property to `Lax`', async function() {
+      let cookie = createSameSiteCookieSpec('Lax');
+      let childUrl = fileserver.whereIs('child/childPage.html');
+      await driver.get(childUrl);
+      await driver.manage().addCookie(cookie);
+      const actualCookie = await driver.manage().getCookie(cookie.name);
+      assert.equal(actualCookie.sameSite, "Lax");
+    });
   });
 
   function createCookieSpec(opt_options) {
@@ -181,6 +199,14 @@ suite(function(env) {
     return spec;
   }
 
+  function createSameSiteCookieSpec(sameSiteVal) {
+    return {
+      name: getRandomString(),
+      value: getRandomString(),
+      sameSite: sameSiteVal
+    };
+  }
+
   function buildCookieMap(cookies) {
     var map = {};
     cookies.forEach(function(cookie) {