Localhost connection does not work Android webview

If I try to go directly to the localhost of the server through Chrome I can enter but through an application the page is blank, follow the code:

public class WebActivity extends Activity {

    private WebView webView;

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.webcontent);

        webView = (WebView) findViewById(R.id.webView);

        webView.getSettings().setJavaScriptEnabled(true);

        webView.loadUrl("192.168.1.66/sir1415/teste/teste.html");


    }