diff --git a/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/MyCookieManager.java b/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/MyCookieManager.java
index 5ed98435..a6ba6d9e 100755
--- a/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/MyCookieManager.java
+++ b/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/MyCookieManager.java
@@ -140,7 +140,10 @@ public class MyCookieManager implements MethodChannel.MethodCallHandler {
     cookieManager = getCookieManager();
     if (cookieManager == null) return;
 
-    String cookieValue = name + "=" + value + "; Domain=" + domain + "; Path=" + path;
+    String cookieValue = name + "=" + value + "; Path=" + path;
+
+    if (domain != null)
+      cookieValue += "; Domain=" + domain;
 
     if (expiresDate != null)
       cookieValue += "; Expires=" + getCookieExpirationDate(expiresDate);
diff --git a/ios/Classes/MyCookieManager.swift b/ios/Classes/MyCookieManager.swift
index 1f892d87..1e13d88f 100755
--- a/ios/Classes/MyCookieManager.swift
+++ b/ios/Classes/MyCookieManager.swift
@@ -35,7 +35,6 @@ class MyCookieManager: NSObject, FlutterPlugin {
                 let url = arguments!["url"] as! String
                 let name = arguments!["name"] as! String
                 let value = arguments!["value"] as! String
-                let domain = arguments!["domain"] as! String
                 let path = arguments!["path"] as! String
                 
                 var expiresDate: Int64?
@@ -47,12 +46,13 @@ class MyCookieManager: NSObject, FlutterPlugin {
                 let isSecure = arguments!["isSecure"] as? Bool
                 let isHttpOnly = arguments!["isHttpOnly"] as? Bool
                 let sameSite = arguments!["sameSite"] as? String
+                let domain = arguments!["domain"] as? String
                 
                 MyCookieManager.setCookie(url: url,
                                           name: name,
                                           value: value,
-                                          domain: domain,
                                           path: path,
+                                          domain: domain,
                                           expiresDate: expiresDate,
                                           maxAge: maxAge,
                                           isSecure: isSecure,
@@ -92,8 +92,8 @@ class MyCookieManager: NSObject, FlutterPlugin {
     public static func setCookie(url: String,
                           name: String,
                           value: String,
-                          domain: String,
                           path: String,
+                          domain: String?,
                           expiresDate: Int64?,
                           maxAge: Int64?,
                           isSecure: Bool?,
@@ -109,8 +109,12 @@ class MyCookieManager: NSObject, FlutterPlugin {
         properties[.originURL] = url
         properties[.name] = name
         properties[.value] = value
-        properties[.domain] = domain
         properties[.path] = path
+        
+        if domain != nil {
+            properties[.domain] = domain
+        }
+
         if expiresDate != nil {
             // convert from milliseconds
             properties[.expires] = Date(timeIntervalSince1970: TimeInterval(Double(expiresDate!)/1000))
diff --git a/lib/src/cookie_manager.dart b/lib/src/cookie_manager.dart
index 7839a501..fbfdaac0 100755
--- a/lib/src/cookie_manager.dart
+++ b/lib/src/cookie_manager.dart
@@ -63,12 +63,9 @@ class CookieManager {
       bool? isHttpOnly,
       HTTPCookieSameSitePolicy? sameSite,
       InAppWebViewController? iosBelow11WebViewController}) async {
-    if (domain == null) domain = _getDomainName(url);
-
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
     assert(value.isNotEmpty);
-    assert(domain.isNotEmpty);
     assert(path.isNotEmpty);
 
     if (defaultTargetPlatform == TargetPlatform.iOS) {
@@ -109,15 +106,16 @@ class CookieManager {
       {required Uri url,
       required String name,
       required String value,
-      required String domain,
       String path = "/",
+      String? domain,
       int? expiresDate,
       int? maxAge,
       bool? isSecure,
       HTTPCookieSameSitePolicy? sameSite,
       InAppWebViewController? webViewController}) async {
-    var cookieValue =
-        name + "=" + value + "; Domain=" + domain + "; Path=" + path;
+    var cookieValue = name + "=" + value + "; Path=" + path;
+
+    if (domain != null) cookieValue += "; Domain=" + domain;
 
     if (expiresDate != null)
       cookieValue += "; Expires=" + await _getCookieExpirationDate(expiresDate);