diff --git a/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java b/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
index 53c51434..e125c366 100644
--- a/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
+++ b/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
@@ -61,6 +61,9 @@ public void onMethodCall(MethodCall call, MethodChannel.Result result) {
             case "back":
                 back(call, result);
                 break;
+            case "canGoBack":
+                canGoBack(call, result);
+                break;
             case "forward":
                 forward(call, result);
                 break;
@@ -175,6 +178,13 @@ private void back(MethodCall call, MethodChannel.Result result) {
         result.success(null);
     }
 
+    private void canGoBack(MethodCall call, MethodChannel.Result result) {
+        if (webViewManager != null) {
+            result.success(webViewManager.canGoBack());
+        }
+        result.success(null);
+    }
+
     /**
      * Navigates forward on the Webview.
      */
diff --git a/ios/Classes/FlutterWebviewPlugin.m b/ios/Classes/FlutterWebviewPlugin.m
index da8afcc4..67317b97 100644
--- a/ios/Classes/FlutterWebviewPlugin.m
+++ b/ios/Classes/FlutterWebviewPlugin.m
@@ -64,6 +64,8 @@ - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
     } else if ([@"back" isEqualToString:call.method]) {
         [self back];
         result(nil);
+    } else if ([@"canGoBack" isEqualToString:call.method]) {
+        result([NSNumber numberWithBool:self.webview.canGoBack]);
     } else if ([@"forward" isEqualToString:call.method]) {
         [self forward];
         result(nil);
@@ -88,12 +90,28 @@ - (void)initWebview:(FlutterMethodCall*)call {
     _invalidUrlRegex = call.arguments[@"invalidUrlRegex"];
 
     if (clearCache != (id)[NSNull null] && [clearCache boolValue]) {
-        [[NSURLCache sharedURLCache] removeAllCachedResponses];
+        if (@available(iOS 11.3, *)) {
+            NSSet *dataTypes = [NSSet setWithArray:@[WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache, WKWebsiteDataTypeFetchCache]];
+            [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:dataTypes modifiedSince:[NSDate dateWithTimeIntervalSince1970:0] completionHandler:^(){
+            }];
+        } else if (@available(iOS 9.0, *)) {
+            NSSet *dataTypes = [NSSet setWithArray:@[WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache]];
+            [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:dataTypes modifiedSince:[NSDate dateWithTimeIntervalSince1970:0] completionHandler:^(){
+            }];
+        } else {
+            [[NSURLCache sharedURLCache] removeAllCachedResponses];
+        }
     }
 
     if (clearCookies != (id)[NSNull null] && [clearCookies boolValue]) {
-        [[NSURLSession sharedSession] resetWithCompletionHandler:^{
-        }];
+        if (@available(iOS 9.0, *)) {
+            NSSet *dataTypes = [NSSet setWithArray:@[WKWebsiteDataTypeCookies]];
+            [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:dataTypes modifiedSince:[NSDate dateWithTimeIntervalSince1970:0] completionHandler:^(){
+            }];
+        } else {
+            [[NSURLSession sharedSession] resetWithCompletionHandler:^{
+            }];
+        }
     }
 
     if (userAgent != (id)[NSNull null]) {
diff --git a/lib/src/base.dart b/lib/src/base.dart
index 1afa1f2c..260a9761 100644
--- a/lib/src/base.dart
+++ b/lib/src/base.dart
@@ -182,6 +182,8 @@ class FlutterWebviewPlugin {
   /// Navigates back on the Webview.
   Future<Null> goBack() async => await _channel.invokeMethod('back');
 
+  Future<bool> canGoBack() async => await _channel.invokeMethod('canGoBack');
+
   /// Navigates forward on the Webview.
   Future<Null> goForward() async => await _channel.invokeMethod('forward');