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I need help with my Android app for Speedway Groceries. The app was created using a WebView that displays the website within the app. However, It seems as if nobody can't make any purchases through the app. What happens on my device is that after I select the shopping cart and proceed to checkout, all of the checkout fields remain closed. On some devices it pops up with the warning message "Security headers is not vaild". Here is a screenshot
For the life of me I cannot figure out what is going on and nobody seems to have the same problem. Here is some code from the Main Activity.
public class MainActivity extends ActionBarActivity {
private WebView mWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.activity_main_webview);
// Enable Javascript
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.setWebChromeClient(new WebChromeClient());
webSettings.setAllowUniversalAccessFromFileURLs(true);
mWebView.loadUrl("http://www.speedwaygroceries.com/");
// Stop local links and redirects from opening in browser instead of WebView
mWebView.setWebViewClient(new MyAppWebViewClient());
}