diff --git a/docs/stories/components/InjectableWebView.jsx b/docs/stories/components/InjectableWebView.jsx
new file mode 100644
index 0000000..7307159
--- /dev/null
+++ b/docs/stories/components/InjectableWebView.jsx
@@ -0,0 +1,19 @@
+import React, { Component } from 'react';
+import { Button, View } from 'react-native-web';
+import WebView from 'react-native-webview';
+
+export default class InjectableWebView extends Component {
+  constructor(props) {
+    super(props);
+    this.ref = React.createRef();
+  }
+
+  render() {
+    return (
+      <View>
+        <WebView ref={this.ref} {...this.props}></WebView>
+        <Button title="Inject" onPress={() => this.ref.current.injectJavaScript(this.props.script)} />
+      </View>
+    );
+  }
+}
diff --git a/docs/stories/html.js b/docs/stories/html.js
index 09308a2..3e51d40 100644
--- a/docs/stories/html.js
+++ b/docs/stories/html.js
@@ -1,6 +1,12 @@
 import React from 'react';
 import { WebView } from 'react-native-webview';
+import InjectableWebView from './components/InjectableWebView';
+import { text } from '@storybook/addon-knobs';
 
 const html = '<html><body><h1>Hello world!</h1></body></html>';
 
 export const basic = () => <WebView source={{ html }} />;
+
+export const inject = () => (
+  <InjectableWebView source={{ html }} script={text('script', 'window.alert("Hello from iframe!")')} />
+);
diff --git a/docs/stories/index.js b/docs/stories/index.js
index e39f4d0..fe9d472 100644
--- a/docs/stories/index.js
+++ b/docs/stories/index.js
@@ -5,8 +5,11 @@ import * as method from './method';
 
 import { storiesOf } from '@storybook/react';
 
-storiesOf('HTML source', module).add('basic', html.basic);
+storiesOf('HTML source', module).add('basic', html.basic).add('inject javascript', html.inject);
 
-storiesOf('URI source', module).add('basic', uri.basic).add('onMessage', uri.onMessage);
+storiesOf('URI source', module)
+  .add('basic', uri.basic)
+  .add('onMessage', uri.onMessage)
+  .add('inject javascript', uri.inject);
 
-storiesOf('With method', module).add('basic', method.basic);
+storiesOf('With method', module).add('basic', method.basic).add('inject javascript', method.inject);
diff --git a/docs/stories/method.js b/docs/stories/method.js
index 09ed1a6..5208485 100644
--- a/docs/stories/method.js
+++ b/docs/stories/method.js
@@ -2,6 +2,8 @@ import React from 'react';
 import { WebView } from 'react-native-webview';
 import { text } from '@storybook/addon-knobs';
 
+import InjectableWebView from './components/InjectableWebView';
+
 export const basic = () => (
   <WebView
     source={{
@@ -10,3 +12,14 @@ export const basic = () => (
     }}
   />
 );
+
+export const inject = () => (
+  <InjectableWebView
+    source={{
+      uri: text('URI', 'https://react-native-web-community.github.io/react-native-web-webview/'),
+      method: text('Method', 'GET'),
+    }}
+    title="test"
+    script={text('script', 'window.alert("Hello from iframe!")')}
+  />
+);
diff --git a/docs/stories/onMessage.html b/docs/stories/onMessage.html
index e48f079..b3cbed7 100644
--- a/docs/stories/onMessage.html
+++ b/docs/stories/onMessage.html
@@ -18,7 +18,7 @@ <h1>Hello world!</h1>
         name: 'WebView',
       });
 
-      document.getElementById('button').addEventListener('click', function () {
+      function onClick() {
         if (window.opener) {
           // Web new window
           window.opener.postMessage(payload, window.opener.origin);
@@ -32,7 +32,9 @@ <h1>Hello world!</h1>
             window.postMessage(payload);
           });
         }
-      });
+      }
+
+      document.getElementById('button').addEventListener('click', onClick);
     </script>
   </body>
 </html>
diff --git a/docs/stories/uri.js b/docs/stories/uri.js
index 98de3dc..f5f1b6f 100644
--- a/docs/stories/uri.js
+++ b/docs/stories/uri.js
@@ -3,8 +3,27 @@ import { WebView } from 'react-native-webview';
 import { action } from '@storybook/addon-actions';
 import { text } from '@storybook/addon-knobs';
 
+import InjectableWebView from './components/InjectableWebView';
+
 export const basic = () => <WebView source={{ uri: 'https://www.youtube.com/embed/dQw4w9WgXcQ' }} />;
 
 export const onMessage = () => (
   <WebView source={{ uri: require('./onMessage.html') }} onMessage={action(text('Text', 'onMessage'))} />
 );
+
+const js = `
+const button = document.getElementById('button')
+button.removeEventListener('click', onClick)
+onClick = () => window.alert('Hello from iframe!')
+button.addEventListener('click', onClick)
+window.alert('click the button')
+`;
+
+export const inject = () => (
+  <InjectableWebView
+    onMessage={action(text('Text', 'onMessage'))}
+    source={{ uri: require('./onMessage.html') }}
+    title="test"
+    script={text('script', js)}
+  />
+);
diff --git a/src/index.js b/src/index.js
index 1c5d65c..4239879 100644
--- a/src/index.js
+++ b/src/index.js
@@ -106,6 +106,10 @@ export class WebView extends Component {
     }
   };
 
+  injectJavaScript = (js) => {
+    this.frameRef.contentWindow.Function(js)();
+  };
+
   render() {
     if (this.props.newWindow) {
       return (
