Disable zoom on web-view react-native?

How to disable zoom on react-nativeweb-view,is there a property like hasZoom={false}(just an example) that can be included in the below web-view tag that can disable zooming.It has to be working on both android and ios.

<WebView     ref={WEBVIEW_REF}     source={{uri:Environment.LOGIN_URL}}     ignoreSslError={true}     onNavigationStateChange={this._onNavigationStateChange.bind(this)}     onLoad={this.onLoad.bind(this)}     onError={this.onError.bind(this)}></WebView>