Enabling general JavaScript in WebViewClient

I don't know what your exact problem is, but i can enable the JavaScript and a custom WebViewclient without any problem:

WebView vistaWeb = (WebView) findViewById(R.id.webview);
vistaWeb.setWebChromeClient(new MyCustomChromeClient(this));
vistaWeb.setWebViewClient(new MyCustomWebViewClient(this));
vistaWeb.clearCache(true);
vistaWeb.clearHistory();
vistaWeb.getSettings().setJavaScriptEnabled(true);
vistaWeb.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);

The proper way to enable JavaScript is by add the below two lines:

mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);

Even if after adding its not working then try adding the below line.

mWebView.getSettings().setDomStorageEnabled(true);

Now It should work. :)

Try this to enable javascript

WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.setWebViewClient(new WebViewClient());
myWebView.loadUrl(url);