Android WebView not loading an HTTPS URL

Question

public void onCreate Bundle savedInstance               super onCreate savedInstance       setContentView R layout show voucher       webView  WebView findViewById R id webview       webView getSettings   setJavaScriptEnabled true       webView getSettings   setBuiltInZoomControls true       String url   https   www paymeon com Vouchers  v  C80 8D B1x D9 CFqh FA 84 C35 0A 1F CE amp iv  25 EE BEi F4 DAT E1        webView loadUrl url      Not Working    Showing blank     webView loadUrl  http   www yahoo com       its working         When I try to load a URL in the WebBView it only shows a blank screen  If I load Google com or yahoo com it s working fine

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My website is a subdomain which is developed on angular 8 which is also using localstorage and cookies  website showed after setting the below line  along with other solutions mentioned above  webSettings setDomStorageEnabled true

User · Answer

override onReceivedSslError and remove      super onReceivedSslError view  handler  error    And to solve Google security      setDomStorageEnabled true     Full code is   webView enableJavaScript    webView getSettings   setDomStorageEnabled true      Add this webView getSettings   setJavaScriptCanOpenWindowsAutomatically true   webView setWebViewClient new WebViewClient             Override         public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error                   DO NOT CALL SUPER METHOD             super onReceivedSslError view  handler  error

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Setting thoses two properties were enough to make it work for me  and doesn t expose to security issues     WebSettings settings   webView getSettings        settings setJavaScriptEnabled true       settings setDomStorageEnabled true

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Per correct answer by fargth  follows is a small code sample that might help   First  create a class that extends WebViewClient and which is set to ignore SSL errors      SSL Error Tolerant Web View Client private class SSLTolerentWebViewClient extends WebViewClient                 Override             public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error                    handler proceed       Ignore SSL certificate errors                    Then with your web view object  initiated in the OnCreate   method   set its web view client to be an instance of the override class    mWebView setWebViewClient                  new SSLTolerentWebViewClient

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Remove the below code it will work    super onReceivedSslError view  handler  error

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Please visit this link   Add this overriding method to your WebViewClient implementation  You ll need to compile it with Android SDK 2 2  API level 8  or later  The method appears in the public SDK as of 2 2  API level 8  but we ve tested it on devices running 2 1  1 6 and 1 5 and it works on those devices too  so obviously the behaviour has been there all along      Override public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error        handler proceed       Ignore SSL certificate errors     this will help you

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Use this line webview getSettings   setDomStorageEnabled true  in your java code  WebView webView    WebView  findViewById R id webview       webView getSettings   setDomStorageEnabled true   WebSettings webSettings   webView getSettings    webSettings setJavaScriptEnabled true   webView loadUrl yourUrl

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Copy and paste your code line bro   it will work trust me    i am thinking  you get a ssl error  If you use override  onReceivedSslError method and remove super it s super method  Just write  handler proceed    error will solve       webView setWebChromeClient new WebChromeClient             public void onProgressChanged WebView view  int progress                 activity setTitle  Loading                   activity setProgress progress   100                if  progress    100                  activity setTitle getResources   getString R string app name                           webView setWebViewClient new WebViewClient              Override         public void onReceivedError WebView view  int errorCode  String description  String failingUrl                Log d  Failure Url      failingUrl                       Override         public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error                Log d  Ssl Error   handler toString      error      error               handler proceed                        Override         public boolean shouldOverrideUrlLoading WebView view  String url                view loadUrl url               return true                        webView getSettings   setJavaScriptEnabled true       webView getSettings   setLoadWithOverviewMode true       webView getSettings   setUseWideViewPort true       webView getSettings   setDomStorageEnabled true       webView loadUrl Constant VIRTUALPOS URL    token     Preference getInstance getContext    getToken       amp dealer     Preference getInstance getContext    getDealerCode

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To properly handle SSL certificate validation and avoid application rejection from Google according new Security Policy  Change your code to invoke SslErrorHandler proceed   whenever the certificate presented by the server meets your expectations  and invoke SslErrorHandler cancel   otherwise   For example  I add an alert dialog to make user have confirmed and seems Google no longer shows warning        Override     public void onReceivedSslError WebView view  final SslErrorHandler handler  SslError error        final AlertDialog Builder builder   new AlertDialog Builder this       String message    SSL Certificate error            switch  error getPrimaryError                  case SslError SSL UNTRUSTED                  message    The certificate authority is not trusted                    break              case SslError SSL EXPIRED                  message    The certificate has expired                    break              case SslError SSL IDMISMATCH                  message    The certificate Hostname mismatch                    break              case SslError SSL NOTYETVALID                  message    The certificate is not yet valid                    break                    message      Do you want to continue anyway             builder setTitle  SSL Certificate Error            builder setMessage message       builder setPositiveButton  continue   new DialogInterface OnClickListener              Override         public void onClick DialogInterface dialog  int which                handler proceed                          builder setNegativeButton  cancel   new DialogInterface OnClickListener              Override         public void onClick DialogInterface dialog  int which                handler cancel                          final AlertDialog dialog   builder create        dialog show        After this changes it will not show warning

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To solve Google security  do this   Lines to the top   import android webkit SslErrorHandler  import android net http SslError    Code   class SSLTolerentWebViewClient extends WebViewClient        Override     public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error            if  error toString       piglet               handler cancel            else             handler proceed       Ignore SSL certificate errors

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In case you want to use the APK outside the Google Play Store  e g   private a solution like the following will probably work       Override     public void onReceivedSslError WebView view  SslErrorHandler handler  SslError error                            handler proceed           In case you want to add an additional optional layer of security  you can try to make use of certificate pinning  IMHO this is not necessary for private or internal usage tough  If you plan to publish the app on the Google Play Store  then you should avoid  Override onReceivedSslError            Especially making use of handler proceed    Google will find this code snippet and will reject your app for sure since the solution with handler proceed   will suppress all kinds of built-in security mechanisms   And just because of the fact that browsers do not complain about your https connection  it does not mean that the SSL certificate itself is trusted at all   In my case  the SSL certificate chain was broken  You can quickly test such issues with SSL Checker or more intermediate with SSLLabs  But please do not ask me how this can happen  I have absolutely no clue  Anyway  after reinstalling the SSL certificate  all errors regarding the  quot untrusted SSL certificate in WebView whatsoever quot  disappeared finally  I also removed the  Override for onReceivedSslError      and got rid of handler proceed    and    voila my app was not rejected by Google Play Store  again

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Recommended approach will be  1 Don t call super method Remove super call from overridden method   2 Google recommend to call SslErrorHandler cancel   method if any error comes  3 Don t Prompt  dialog to expose SSL errors  Whats the best solution   Remove this override method   Override public void onReceivedSslError WebView view  SslErrorHandler handler SslError error

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To handle SSL urls the method  onReceivedSslError   from the WebViewClient class  This is an example    webview setWebViewClient new WebViewClient                                                                         Override             public void onReceivedSslError WebView view  final SslErrorHandler handler  SslError error                    String message    SSL Certificate error                    switch  error getPrimaryError                          case SslError SSL UNTRUSTED                          message    The certificate authority is not trusted                            break                      case SslError SSL EXPIRED                          message    The certificate has expired                            break                      case SslError SSL IDMISMATCH                          message    The certificate Hostname mismatch                            break                      case SslError SSL NOTYETVALID                          message    The certificate is not yet valid                            break                                    message       SSL Certificate Error   Do you want to continue anyway    YES                    handler proceed                                 You can check my complete example here  https   github com Jorgesys Android-WebView-Logging

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I followed the answers above but still it seems not to be working for me below code did a trick for me when integrating payment gatways which are usually https requests    public class MainActivity extends Activity        WebView webView           Called when the activity is first created          Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main           webView    WebView  findViewById R id webView1           WebSettings settings   webView getSettings            settings setJavaScriptEnabled true           settings setDomStorageEnabled true           webView setWebViewClient new MyWebViewClient             String postData    amount 1000 amp firstname mtetno amp email mttee gmail com amp phone 2145635784 amp productinfo android amp surl success php                      amp furl failure php amp lastname qwerty amp curl dsdsd com amp address1 dsdsds amp address2 dfdfd amp city dsdsds amp state dfdfdfd amp                      country fdfdf amp zipcode 123456 amp udf1 dsdsds amp udf2 fsdfdsf amp udf3 jhghjg amp udf4 fdfd amp udf5 fdfdf amp pg dfdf           webView postUrl                   http   host payment php                   EncodingUtils getBytes postData   BASE64                 private class MyWebViewClient extends WebViewClient            Override         public boolean shouldOverrideUrlLoading WebView view  String url                webView loadUrl url               return true                      Override         public void onReceivedSslError WebView view  SslErrorHandler handler                  SslError error                handler proceed                        Above code is doing a post request in webview and redirecting to payment gateway   Setting settings setDomStorageEnabled true   did a trick for me Hope this helps

[android] Android WebView not loading an HTTPS URL

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