diff --git a/types/cordova-plugin-inappbrowser/index.d.ts b/types/cordova-plugin-inappbrowser/index.d.ts
index 1cf2c67642..47c58eadfa 100644
--- a/types/cordova-plugin-inappbrowser/index.d.ts
+++ b/types/cordova-plugin-inappbrowser/index.d.ts
@@ -39,7 +39,7 @@ interface InAppBrowser extends Window {
      * @param callback  the function that executes when the event fires. The function is
      *                  passed an InAppBrowserEvent object as a parameter.
      */
-    addEventListener(type: channel, callback: (event: InAppBrowserEvent) => void): void;
+    addEventListener(type: channel, callback: InAppBrowserEventListenerOrEventListenerObject): void;
     // removeEventListener overloads
     /**
      * Removes a listener for an event from the InAppBrowser.
@@ -51,7 +51,7 @@ interface InAppBrowser extends Window {
      * @param callback  the function that executes when the event fires. The function is
      *                  passed an InAppBrowserEvent object as a parameter.
      */
-    removeEventListener(type: channel, callback: (event: InAppBrowserEvent) => void): void;
+    removeEventListener(type: channel, callback: InAppBrowserEventListenerOrEventListenerObject): void;
     /** Closes the InAppBrowser window. */
     close(): void;
     /** Hides the InAppBrowser window. Calling this has no effect if the InAppBrowser was already hidden. */
@@ -79,6 +79,14 @@ interface InAppBrowser extends Window {
     insertCSS(css: { code: string } | { file: string }, callback: () => void): void;
 }
 
+type InAppBrowserEventListenerOrEventListenerObject = InAppBrowserEventListener | InAppBrowserEventListenerObject;
+
+type InAppBrowserEventListener = (evt: InAppBrowserEvent) => void;
+
+interface InAppBrowserEventListenerObject {
+    handleEvent(evt: InAppBrowserEvent): void;
+}
+
 interface InAppBrowserEvent extends Event {
     /** the eventname, either loadstart, loadstop, loaderror, or exit. */
     type: string;
diff --git a/types/cordova-plugin-inappbrowser/tsconfig.json b/types/cordova-plugin-inappbrowser/tsconfig.json
index ff0151160c..f3d3cb59d3 100644
--- a/types/cordova-plugin-inappbrowser/tsconfig.json
+++ b/types/cordova-plugin-inappbrowser/tsconfig.json
@@ -5,10 +5,10 @@
             "es6",
             "dom"
         ],
-        "noImplicitAny": false,
+        "noImplicitAny": true,
         "noImplicitThis": true,
-        "strictNullChecks": false,
-        "strictFunctionTypes": false,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"