added new webview options

CHANGELOG.md

@@ -13,9 +13,9 @@
 - Added `onLoadResourceCustomScheme` event and `resourceCustomSchemes` option to set custom schemes that WebView must handle to load resources
 - Added `onTargetBlank` event and `useOnTargetBlank` option to manage links with `target="_blank"`
 - Added `ContentBlocker`, `ContentBlockerTrigger` and `ContentBlockerAction` classes and the `contentBlockers` option that allows to define a set of rules to use to block content in the WebView
-- Added new WebView options: `minimumFontSize`, `debuggingEnabled`, `preferredContentMode`
-- Added new Android WebView options: `allowContentAccess`, `allowFileAccess`, `allowFileAccessFromFileURLs`, `allowUniversalAccessFromFileURLs`, `appCacheEnabled`, `appCachePath`, `blockNetworkImage`, `blockNetworkLoads`, `cacheMode`, `cursiveFontFamily`, `defaultFixedFontSize`, `defaultFontSize`, `defaultTextEncodingName`, `disabledActionModeMenuItems`, `fantasyFontFamily`, `fixedFontFamily`, `forceDark`, `geolocationEnabled`, `layoutAlgorithm`, `loadWithOverviewMode`, `loadsImagesAutomatically`, `minimumLogicalFontSize`, `needInitialFocus`, `offscreenPreRaster`, `sansSerifFontFamily`, `serifFontFamily`, `standardFontFamily`
-- Added new iOS WebView options: `applicationNameForUserAgent`, `isFraudulentWebsiteWarningEnabled`, `selectionGranularity`, `dataDetectorTypes`
+- Added new WebView options: `minimumFontSize`, `debuggingEnabled`, `preferredContentMode`, `applicationNameForUserAgent`, `incognito`, `cacheEnabled`
+- Added new Android WebView options: `allowContentAccess`, `allowFileAccess`, `allowFileAccessFromFileURLs`, `allowUniversalAccessFromFileURLs`, `appCachePath`, `blockNetworkImage`, `blockNetworkLoads`, `cacheMode`, `cursiveFontFamily`, `defaultFixedFontSize`, `defaultFontSize`, `defaultTextEncodingName`, `disabledActionModeMenuItems`, `fantasyFontFamily`, `fixedFontFamily`, `forceDark`, `geolocationEnabled`, `layoutAlgorithm`, `loadWithOverviewMode`, `loadsImagesAutomatically`, `minimumLogicalFontSize`, `needInitialFocus`, `offscreenPreRaster`, `sansSerifFontFamily`, `serifFontFamily`, `standardFontFamily`, `saveFormData`, `thirdPartyCookiesEnabled`, `hardwareAcceleration`
+- Added new iOS WebView options: `isFraudulentWebsiteWarningEnabled`, `selectionGranularity`, `dataDetectorTypes`, `sharedCookiesEnabled`
 - Added `onGeolocationPermissionsShowPrompt` event and `GeolocationPermissionShowPromptResponse` class (available only for Android)
 - Added `startSafeBrowsing`, `setSafeBrowsingWhitelist` and `getSafeBrowsingPrivacyPolicyUrl` methods (available only for Android)
 - Added `clearSslPreferences` and `clearClientCertPreferences` methods (available only for Android)

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppWebView/InAppWebView.java

@@ -499,19 +499,28 @@ final public class InAppWebView extends InputAwareWebView {
     settings.setDatabaseEnabled(options.databaseEnabled);
     settings.setDomStorageEnabled(options.domStorageEnabled);
 
-    if (!options.userAgent.isEmpty())
+    if (options.userAgent != null && !options.userAgent.isEmpty())
       settings.setUserAgentString(options.userAgent);
+    else if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1)
+      settings.setUserAgentString(WebSettings.getDefaultUserAgent(getContext()));
+
+    if (options.applicationNameForUserAgent != null && !options.applicationNameForUserAgent.isEmpty()) {
+      if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+        String userAgent = (options.userAgent != null && !options.userAgent.isEmpty()) ? options.userAgent :WebSettings.getDefaultUserAgent(getContext());
+        String userAgentWithApplicationName = userAgent + " " + options.applicationNameForUserAgent;
+        settings.setUserAgentString(userAgentWithApplicationName);
+      }
+    }
 
     if (options.clearCache)
       clearAllCache();
     else if (options.clearSessionCache)
       CookieManager.getInstance().removeSessionCookie();
 
-    // Enable Thirdparty Cookies on >=Android 5.0 device
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
-      CookieManager.getInstance().setAcceptThirdPartyCookies(this, true);
+      CookieManager.getInstance().setAcceptThirdPartyCookies(this, options.thirdPartyCookiesEnabled);
 
-    settings.setLoadWithOverviewMode(true);
+    settings.setLoadWithOverviewMode(options.loadWithOverviewMode);
     settings.setUseWideViewPort(options.useWideViewPort);
     settings.setSupportZoom(options.supportZoom);
     settings.setTextZoom(options.textZoom);
@@ -528,8 +537,8 @@ final public class InAppWebView extends InputAwareWebView {
     settings.setAllowFileAccess(options.allowFileAccess);
     settings.setAllowFileAccessFromFileURLs(options.allowFileAccessFromFileURLs);
     settings.setAllowUniversalAccessFromFileURLs(options.allowUniversalAccessFromFileURLs);
-    settings.setAppCacheEnabled(options.appCacheEnabled);
-    if (options.appCachePath != null && !options.appCachePath.isEmpty() && options.appCacheEnabled)
+    setCacheEnabled(options.cacheEnabled);
+    if (options.appCachePath != null && !options.appCachePath.isEmpty() && options.cacheEnabled)
       settings.setAppCachePath(options.appCachePath);
     settings.setBlockNetworkImage(options.blockNetworkImage);
     settings.setBlockNetworkLoads(options.blockNetworkLoads);
@@ -548,7 +557,6 @@ final public class InAppWebView extends InputAwareWebView {
     settings.setGeolocationEnabled(options.geolocationEnabled);
     if (options.layoutAlgorithm != null)
       settings.setLayoutAlgorithm(options.layoutAlgorithm);
-    settings.setLoadWithOverviewMode(options.loadWithOverviewMode);
     settings.setLoadsImagesAutomatically(options.loadsImagesAutomatically);
     settings.setMinimumFontSize(options.minimumFontSize);
     settings.setMinimumLogicalFontSize(options.minimumLogicalFontSize);
@@ -570,6 +578,13 @@ final public class InAppWebView extends InputAwareWebView {
           break;
       }
     }
+    settings.setSaveFormData(options.saveFormData);
+    if (options.incognito)
+      setIncognito(true);
+    if (options.hardwareAcceleration)
+      setLayerType(View.LAYER_TYPE_HARDWARE, null);
+    else
+      setLayerType(View.LAYER_TYPE_SOFTWARE, null);
 
     contentBlockerHandler.getRuleList().clear();
     for (Map<String, Map<String, Object>> contentBlocker : options.contentBlockers) {
@@ -593,6 +608,49 @@ final public class InAppWebView extends InputAwareWebView {
     });
   }
 
+  public void setIncognito(boolean enabled) {
+    WebSettings settings = getSettings();
+    if (enabled) {
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+        CookieManager.getInstance().removeAllCookies(null);
+      } else {
+        CookieManager.getInstance().removeAllCookie();
+      }
+
+      // Disable caching
+      settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
+      settings.setAppCacheEnabled(false);
+      clearHistory();
+      clearCache(true);
+
+      // No form data or autofill enabled
+      clearFormData();
+      settings.setSavePassword(false);
+      settings.setSaveFormData(false);
+    }
+    else {
+      settings.setCacheMode(WebSettings.LOAD_DEFAULT);
+      settings.setAppCacheEnabled(true);
+      settings.setSavePassword(true);
+      settings.setSaveFormData(true);
+    }
+  }
+
+  public void setCacheEnabled(boolean enabled) {
+    WebSettings settings = getSettings();
+    if (enabled) {
+      Context ctx = getContext();
+      if (ctx != null) {
+        settings.setAppCachePath(ctx.getCacheDir().getAbsolutePath());
+        settings.setCacheMode(WebSettings.LOAD_DEFAULT);
+        settings.setAppCacheEnabled(true);
+      }
+    } else {
+      settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
+      settings.setAppCacheEnabled(false);
+    }
+  }
+
   public void loadUrl(String url, MethodChannel.Result result) {
     if (!url.isEmpty()) {
       loadUrl(url);
@@ -780,11 +838,22 @@ final public class InAppWebView extends InputAwareWebView {
     if (newOptionsMap.get("userAgent") != null && !options.userAgent.equals(newOptions.userAgent) && !newOptions.userAgent.isEmpty())
       settings.setUserAgentString(newOptions.userAgent);
 
+    if (newOptionsMap.get("applicationNameForUserAgent") != null && !options.applicationNameForUserAgent.equals(newOptions.applicationNameForUserAgent) && !newOptions.applicationNameForUserAgent.isEmpty()) {
+      if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+        String userAgent = (newOptions.userAgent != null && !newOptions.userAgent.isEmpty()) ? newOptions.userAgent : WebSettings.getDefaultUserAgent(getContext());
+        String userAgentWithApplicationName = userAgent + " " + options.applicationNameForUserAgent;
+        settings.setUserAgentString(userAgentWithApplicationName);
+      }
+    }
+
     if (newOptionsMap.get("clearCache") != null && newOptions.clearCache)
       clearAllCache();
     else if (newOptionsMap.get("clearSessionCache") != null && newOptions.clearSessionCache)
       CookieManager.getInstance().removeSessionCookie();
 
+    if (newOptionsMap.get("thirdPartyCookiesEnabled") != null && options.thirdPartyCookiesEnabled != newOptions.thirdPartyCookiesEnabled && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
+      CookieManager.getInstance().setAcceptThirdPartyCookies(this, newOptions.thirdPartyCookiesEnabled);
+
     if (newOptionsMap.get("useWideViewPort") != null && options.useWideViewPort != newOptions.useWideViewPort)
       settings.setUseWideViewPort(newOptions.useWideViewPort);
 
@@ -835,12 +904,11 @@ final public class InAppWebView extends InputAwareWebView {
     if (newOptionsMap.get("allowUniversalAccessFromFileURLs") != null && options.allowUniversalAccessFromFileURLs != newOptions.allowUniversalAccessFromFileURLs)
       settings.setAllowUniversalAccessFromFileURLs(newOptions.allowUniversalAccessFromFileURLs);
 
-    if (newOptionsMap.get("appCacheEnabled") != null && options.appCacheEnabled != newOptions.appCacheEnabled)
-      settings.setAppCacheEnabled(newOptions.appCacheEnabled);
+    if (newOptionsMap.get("cacheEnabled") != null && options.cacheEnabled != newOptions.cacheEnabled)
+      setCacheEnabled(newOptions.cacheEnabled);
 
     if (newOptionsMap.get("appCachePath") != null && !options.appCachePath.equals(newOptions.appCachePath))
-      if (newOptions.appCacheEnabled)
-        settings.setAppCachePath(newOptions.appCachePath);
+      settings.setAppCachePath(newOptions.appCachePath);
 
     if (newOptionsMap.get("blockNetworkImage") != null && options.blockNetworkImage != newOptions.blockNetworkImage)
       settings.setBlockNetworkImage(newOptions.blockNetworkImage);
@@ -911,6 +979,19 @@ final public class InAppWebView extends InputAwareWebView {
     if (newOptionsMap.get("standardFontFamily") != null && !options.standardFontFamily.equals(newOptions.standardFontFamily))
       settings.setStandardFontFamily(newOptions.standardFontFamily);
 
+    if (newOptionsMap.get("saveFormData") != null && options.saveFormData != newOptions.saveFormData)
+      settings.setSaveFormData(newOptions.saveFormData);
+
+    if (newOptionsMap.get("incognito") != null && options.incognito != newOptions.incognito)
+      setIncognito(newOptions.incognito);
+
+    if (newOptionsMap.get("hardwareAcceleration") != null && options.hardwareAcceleration != newOptions.hardwareAcceleration) {
+      if (newOptions.hardwareAcceleration)
+        setLayerType(View.LAYER_TYPE_HARDWARE, null);
+      else
+        setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+    }
+
     if (newOptions.contentBlockers != null) {
       contentBlockerHandler.getRuleList().clear();
       for (Map<String, Map<String, Object>> contentBlocker : newOptions.contentBlockers) {

android/src/main/java/com/pichillilorenzo/flutter_inappbrowser/InAppWebView/InAppWebViewOptions.java

@@ -12,44 +12,46 @@ public class InAppWebViewOptions extends Options {
 
   public static final String LOG_TAG = "InAppWebViewOptions";
 
-  public boolean useShouldOverrideUrlLoading = false;
-  public boolean useOnLoadResource = false;
-  public boolean useOnDownloadStart = false;
-  public boolean useOnTargetBlank = false;
-  public boolean clearCache = false;
+  public Boolean useShouldOverrideUrlLoading = false;
+  public Boolean useOnLoadResource = false;
+  public Boolean useOnDownloadStart = false;
+  public Boolean useOnTargetBlank = false;
+  public Boolean clearCache = false;
   public String userAgent = "";
-  public boolean javaScriptEnabled = true;
-  public boolean debuggingEnabled = false;
-  public boolean javaScriptCanOpenWindowsAutomatically = false;
-  public boolean mediaPlaybackRequiresUserGesture = true;
+  public String applicationNameForUserAgent = "";
+  public Boolean javaScriptEnabled = true;
+  public Boolean debuggingEnabled = false;
+  public Boolean javaScriptCanOpenWindowsAutomatically = false;
+  public Boolean mediaPlaybackRequiresUserGesture = true;
   public Integer textZoom = 100;
   public Integer minimumFontSize = 8;
-  public boolean verticalScrollBarEnabled = true;
-  public boolean horizontalScrollBarEnabled = true;
+  public Boolean verticalScrollBarEnabled = true;
+  public Boolean horizontalScrollBarEnabled = true;
   public List<String> resourceCustomSchemes = new ArrayList<>();
   public List<Map<String, Map<String, Object>>> contentBlockers = new ArrayList<>();
   public Integer preferredContentMode = PreferredContentModeOptionType.RECOMMENDED.toValue();
   public Boolean useShouldInterceptAjaxRequest = false;
   public Boolean useShouldInterceptFetchRequest = false;
+  public Boolean incognito = false;
+  public Boolean cacheEnabled = true;
+  public Boolean transparentBackground = false;
 
-  public boolean clearSessionCache = false;
-  public boolean builtInZoomControls = false;
-  public boolean displayZoomControls = false;
-  public boolean supportZoom = true;
-  public boolean databaseEnabled = false;
-  public boolean domStorageEnabled = false;
-  public boolean useWideViewPort = true;
-  public boolean safeBrowsingEnabled = true;
-  public boolean transparentBackground = false;
+  public Boolean clearSessionCache = false;
+  public Boolean builtInZoomControls = false;
+  public Boolean displayZoomControls = false;
+  public Boolean supportZoom = true;
+  public Boolean databaseEnabled = false;
+  public Boolean domStorageEnabled = false;
+  public Boolean useWideViewPort = true;
+  public Boolean safeBrowsingEnabled = true;
   public Integer mixedContentMode;
-  public boolean allowContentAccess = true;
-  public boolean allowFileAccess = true;
-  public boolean allowFileAccessFromFileURLs = true;
-  public boolean allowUniversalAccessFromFileURLs = true;
-  public boolean appCacheEnabled = true;
+  public Boolean allowContentAccess = true;
+  public Boolean allowFileAccess = true;
+  public Boolean allowFileAccessFromFileURLs = true;
+  public Boolean allowUniversalAccessFromFileURLs = true;
   public String appCachePath;
-  public boolean blockNetworkImage = false;
-  public boolean blockNetworkLoads = false;
+  public Boolean blockNetworkImage = false;
+  public Boolean blockNetworkLoads = false;
   public Integer cacheMode = WebSettings.LOAD_DEFAULT;
   public String cursiveFontFamily = "cursive";
   public Integer defaultFixedFontSize = 16;
@@ -59,14 +61,17 @@ public class InAppWebViewOptions extends Options {
   public String fantasyFontFamily = "fantasy";
   public String fixedFontFamily = "monospace";
   public Integer forceDark = 0; // WebSettings.FORCE_DARK_OFF
-  public boolean geolocationEnabled = true;
+  public Boolean geolocationEnabled = true;
   public WebSettings.LayoutAlgorithm layoutAlgorithm;
-  public boolean loadWithOverviewMode = true;
-  public boolean loadsImagesAutomatically = true;
+  public Boolean loadWithOverviewMode = true;
+  public Boolean loadsImagesAutomatically = true;
   public Integer minimumLogicalFontSize = 8;
-  public boolean needInitialFocus = true;
-  public boolean offscreenPreRaster = false;
+  public Boolean needInitialFocus = true;
+  public Boolean offscreenPreRaster = false;
   public String sansSerifFontFamily = "sans-serif";
   public String serifFontFamily = "sans-serif";
   public String standardFontFamily = "sans-serif";
+  public Boolean saveFormData = true;
+  public Boolean thirdPartyCookiesEnabled = true;
+  public Boolean hardwareAcceleration = true;
 }

example/lib/inline_example.screen.dart

@@ -93,7 +93,7 @@ class _InlineExampleScreenState extends State<InlineExampleScreen> {
             initialOptions: InAppWebViewWidgetOptions(
               inAppWebViewOptions: InAppWebViewOptions(
                 debuggingEnabled: true,
-                clearCache: true,
+                //clearCache: true,
                 useShouldOverrideUrlLoading: true,
                 useOnTargetBlank: true,
                 useOnLoadResource: true,
@@ -113,7 +113,6 @@ class _InlineExampleScreenState extends State<InlineExampleScreen> {
                 ),
               androidInAppWebViewOptions: AndroidInAppWebViewOptions(
                 databaseEnabled: true,
-                appCacheEnabled: true,
                 domStorageEnabled: true,
                 geolocationEnabled: true,
                 //safeBrowsingEnabled: true,

ios/Classes/FlutterWebViewController.swift

@@ -302,6 +302,10 @@ public class FlutterWebViewController: NSObject, FlutterPlatformView {
                 }
                 result(true)
                 break
+            case "removeFromSuperview":
+                webView!.removeFromSuperview()
+                result(true)
+                break
             default:
                 result(FlutterMethodNotImplemented)
                 break

ios/Classes/InAppWebView.swift

@@ -26,6 +26,19 @@ func convertToDictionary(text: String) -> [String: Any]? {
     return nil
 }
 
+func JSONStringify(value: Any, prettyPrinted: Bool = false) -> String {
+    let options: JSONSerialization.WritingOptions = prettyPrinted ? .prettyPrinted : .init(rawValue: 0)
+    if JSONSerialization.isValidJSONObject(value) {
+        let data = try? JSONSerialization.data(withJSONObject: value, options: options)
+        if data != nil {
+            if let string = String(data: data!, encoding: .utf8) {
+                return string
+            }
+        }
+    }
+    return ""
+}
+
 let JAVASCRIPT_BRIDGE_NAME = "flutter_inappbrowser"
 
 // the message needs to be concatenated with '' in order to have the same behavior like on Android
@@ -662,7 +675,6 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
         let jscriptWebkitTouchCallout = WKUserScript(source: "document.body.style.webkitTouchCallout='none';", injectionTime: .atDocumentEnd, forMainFrameOnly: true)
         configuration.userContentController.addUserScript(jscriptWebkitTouchCallout)
         
-        
         let consoleLogJSScript = WKUserScript(source: consoleLogJS, injectionTime: .atDocumentStart, forMainFrameOnly: false)
         configuration.userContentController.addUserScript(consoleLogJSScript)
         configuration.userContentController.add(self, name: "consoleLog")
@@ -699,18 +711,39 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
             configuration.userContentController.addUserScript(interceptFetchRequestsJSScript)
         }
         
+        if #available(iOS 9.0, *) {
+            if ((options?.incognito)!) {
+                configuration.websiteDataStore = WKWebsiteDataStore.nonPersistent()
+            } else if ((options?.cacheEnabled)!) {
+                configuration.websiteDataStore = WKWebsiteDataStore.default()
+            }
+        }
         
-        //keyboardDisplayRequiresUserAction = browserOptions?.keyboardDisplayRequiresUserAction
+        if #available(iOS 11.0, *) {
+            if((options?.sharedCookiesEnabled)!) {
+                // More info to sending cookies with WKWebView
+                // https://stackoverflow.com/questions/26573137/can-i-set-the-cookies-to-be-used-by-a-wkwebview/26577303#26577303
+                // Set Cookies in iOS 11 and above, initialize websiteDataStore before setting cookies
+                // See also https://forums.developer.apple.com/thread/97194
+                // check if websiteDataStore has not been initialized before
+                if(!(options?.incognito)! && !(options?.cacheEnabled)!) {
+                    configuration.websiteDataStore = WKWebsiteDataStore.nonPersistent()
+                }
+                for cookie in HTTPCookieStorage.shared.cookies ?? [] {
+                    configuration.websiteDataStore.httpCookieStore.setCookie(cookie, completionHandler: nil)
+                }
+            }
+        }
         
         configuration.suppressesIncrementalRendering = (options?.suppressesIncrementalRendering)!
         allowsBackForwardNavigationGestures = (options?.allowsBackForwardNavigationGestures)!
         if #available(iOS 9.0, *) {
             allowsLinkPreview = (options?.allowsLinkPreview)!
             configuration.allowsPictureInPictureMediaPlayback = (options?.allowsPictureInPictureMediaPlayback)!
-            if ((options?.applicationNameForUserAgent)! != "") {
+            if (options?.applicationNameForUserAgent != nil && (options?.applicationNameForUserAgent)! != "") {
                 configuration.applicationNameForUserAgent = (options?.applicationNameForUserAgent)!
             }
-            if ((options?.userAgent)! != "") {
+            if (options?.userAgent != nil && (options?.userAgent)! != "") {
                 customUserAgent = (options?.userAgent)!
             }
         }
@@ -927,6 +960,25 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
             }
         }
         
+        if #available(iOS 9.0, *) {
+            if (newOptionsMap["incognito"] != nil && options?.incognito != newOptions.incognito && newOptions.incognito) {
+                configuration.websiteDataStore = WKWebsiteDataStore.nonPersistent()
+            } else if (newOptionsMap["cacheEnabled"] != nil && options?.cacheEnabled != newOptions.cacheEnabled && newOptions.cacheEnabled) {
+                configuration.websiteDataStore = WKWebsiteDataStore.default()
+            }
+        }
+        
+        if #available(iOS 11.0, *) {
+            if (newOptionsMap["sharedCookiesEnabled"] != nil && options?.sharedCookiesEnabled != newOptions.sharedCookiesEnabled && newOptions.sharedCookiesEnabled) {
+                if(!newOptions.incognito && !newOptions.cacheEnabled) {
+                    configuration.websiteDataStore = WKWebsiteDataStore.nonPersistent()
+                }
+                for cookie in HTTPCookieStorage.shared.cookies ?? [] {
+                    configuration.websiteDataStore.httpCookieStore.setCookie(cookie, completionHandler: nil)
+                }
+            }
+        }
+        
         if newOptionsMap["enableViewportScale"] != nil && options?.enableViewportScale != newOptions.enableViewportScale && newOptions.enableViewportScale {
             let jscript = "var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);"
             evaluateJavaScript(jscript, completionHandler: nil)
@@ -960,10 +1012,6 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
             configuration.allowsInlineMediaPlayback = newOptions.allowsInlineMediaPlayback
         }
         
-        //        if newOptionsMap["keyboardDisplayRequiresUserAction"] != nil && browserOptions?.keyboardDisplayRequiresUserAction != newOptions.keyboardDisplayRequiresUserAction {
-        //            self.webView.keyboardDisplayRequiresUserAction = newOptions.keyboardDisplayRequiresUserAction
-        //        }
-        
         if newOptionsMap["suppressesIncrementalRendering"] != nil && options?.suppressesIncrementalRendering != newOptions.suppressesIncrementalRendering {
             configuration.suppressesIncrementalRendering = newOptions.suppressesIncrementalRendering
         }
@@ -1997,4 +2045,24 @@ public class InAppWebView: WKWebView, UIScrollViewDelegate, WKUIDelegate, WKNavi
     func clearMatches(completionHandler: ((Any?, Error?) -> Void)?) {
         evaluateJavaScript("wkwebview_ClearMatches();", completionHandler: completionHandler)
     }
+    
+    public override func removeFromSuperview() {
+        configuration.userContentController.removeScriptMessageHandler(forName: "consoleLog")
+        configuration.userContentController.removeScriptMessageHandler(forName: "consoleDebug")
+        configuration.userContentController.removeScriptMessageHandler(forName: "consoleError")
+        configuration.userContentController.removeScriptMessageHandler(forName: "consoleInfo")
+        configuration.userContentController.removeScriptMessageHandler(forName: "consoleWarn")
+        configuration.userContentController.removeScriptMessageHandler(forName: "callHandler")
+        configuration.userContentController.removeScriptMessageHandler(forName: "onFindResultReceived")
+        configuration.userContentController.removeScriptMessageHandler(forName: "onNavigationStateChange")
+        configuration.userContentController.removeAllUserScripts()
+        removeObserver(self, forKeyPath: "estimatedProgress")
+        super.removeFromSuperview()
+        uiDelegate = nil
+        navigationDelegate = nil
+        scrollView.delegate = nil
+        IAWController?.channel?.setMethodCallHandler(nil)
+        IABController?.webView = nil
+        IAWController?.webView = nil
+    }
 }

ios/Classes/InAppWebViewOptions.swift

@@ -17,6 +17,7 @@ public class InAppWebViewOptions: Options {
     var useOnTargetBlank = false
     var clearCache = false
     var userAgent = ""
+    var applicationNameForUserAgent = ""
     var javaScriptEnabled = true
     var debuggingEnabled = true
     var javaScriptCanOpenWindowsAutomatically = false
@@ -25,13 +26,15 @@ public class InAppWebViewOptions: Options {
     var horizontalScrollBarEnabled = true
     var resourceCustomSchemes: [String] = []
     var contentBlockers: [[String: [String : Any]]] = []
-    var minimumFontSize = 0;
+    var minimumFontSize = 0
     var useShouldInterceptAjaxRequest = false
     var useShouldInterceptFetchRequest = false
+    var incognito = false
+    var cacheEnabled = true
+    var transparentBackground = false
 
     var disallowOverScroll = false
     var enableViewportScale = false
-    //var keyboardDisplayRequiresUserAction = true
     var suppressesIncrementalRendering = false
     var allowsAirPlayForMediaPlayback = true
     var allowsBackForwardNavigationGestures = true
@@ -39,12 +42,11 @@ public class InAppWebViewOptions: Options {
     var ignoresViewportScaleLimits = false
     var allowsInlineMediaPlayback = false
     var allowsPictureInPictureMediaPlayback = true
-    var transparentBackground = false
-    var applicationNameForUserAgent = "";
     var isFraudulentWebsiteWarningEnabled = true;
     var selectionGranularity = 0;
-    var dataDetectorTypes: [String] = ["NONE"]; // WKDataDetectorTypeNone
-    var preferredContentMode = 0;
+    var dataDetectorTypes: [String] = ["NONE"] // WKDataDetectorTypeNone
+    var preferredContentMode = 0
+    var sharedCookiesEnabled = false
     
     override init(){
         super.init()

lib/src/in_app_webview.dart

@@ -325,6 +325,13 @@ class _InAppWebViewState extends State<InAppWebView> {
     super.didUpdateWidget(oldWidget);
   }
 
+  @override
+  void dispose(){
+    super.dispose();
+    if (Platform.isIOS)
+      _controller._channel.invokeMethod('removeFromSuperview');
+  }
+
   void _onPlatformViewCreated(int id) {
     _controller = InAppWebViewController(id, widget);
     if (widget.onWebViewCreated != null) {