When creating a WebView you can specify some options as to how the view will handle certain content and interactions.
To do so, create an instance of the WebViewOptions class and set the options as required. Some of these options are platform dependent so make sure you read the documentation in the WebViewOptions class.
The link target action option determines how links with "_blank" targets are handled. In a normal browser situation these would open a new tab/window however in our environment you have the following options:
LinkTargetAction.SYSTEM_BROWSER: New windows / popups from blank targets will open in the system browser;
LinkTargetAction.CURRENT_WEBVIEW: Blank targets will load in the current webview;
LinkTargetAction.BLOCK: Blank targets will be blocked, the NativeWebViewEvent.LINK_BLOCKED event will be dispatched if you wish to handle them in your code.