WebView showing ERR CLEARTEXT NOT PERMITTED although site is HTTPS

Question

I m starting to work on an app on Android  so I don t have much  All I have is just a WebView so far  I created the project in Android Studio  and my project got set as an Android InstantApp  I m not sure why how  but my guess is that I overlooked an option for it when creating the project   I was getting an error from the WebView saying net  ERR CLEARTEXT NOT PERMITTED  When I googled the error  I saw that when an app is an InstantApp  WebViews can only load sites that are HTTPS  and cannot load an HTTP site   The purpose of this app is to be an extremely simple Flash player for only one site  This is to have better performance running a game that requires Flash  This game is at darkorbit com  which is HTTPS   MainActivity java   package com tylerr147 darkorbit   import android content ComponentName  import android content Intent  import android support v7 app AppCompatActivity  import android os Bundle  import android view View  import android webkit WebSettings  import android webkit WebView   public class MainActivity extends AppCompatActivity         Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main            WebView wv   findViewById R id webView1           wv loadUrl  https   darkorbit com             wv setWebViewClient new CustomWebViewClient             WebSettings webSettings   wv getSettings            webSettings setJavaScriptEnabled true           webSettings setPluginState WebSettings PluginState ON              and CustomWebViewClient java  package com tylerr147 darkorbit   import android webkit WebView  import android webkit WebViewClient   public class CustomWebViewClient extends WebViewClient        Override     public boolean shouldOverrideUrlLoading WebView view  String url            view loadUrl url           return true            My question  How can I disable my app as an InstantApp  or how can I get this WebView to display the site   I feel like it s important I mention a few other details too  In the app  where it is showing the WebView  it also says  The webpage at http   darkorbit com   could not be loaded because  net  ERR CLEARTEXT NOT PERMITTED  Notice that is says      site at http   darkorbit com        and not      site at https   darkorbit com       even though the string for the URL is hardcoded  and says  https   darkorbit com    Also  I am testing the app on an emulator set up as a Google Pixel 2 running Android 9   Any help would be appreciated  Thank you

User · Accepted Answer

Solution   Add the below line in your application tag   android usesCleartextTraffic  true    As shown below    lt application              android usesCleartextTraffic  true           gt    UPDATE  If you have network security config such as  android networkSecurityConfig   xml network security config    No Need to set clear text traffic to true as shown above  instead use the below code    lt  xml version  1 0  encoding  utf-8   gt   lt network-security-config gt       lt domain-config cleartextTrafficPermitted  true  gt                                 lt  domain-config gt        lt base-config cleartextTrafficPermitted  false   gt   lt  network-security-config gt      Set the cleartextTrafficPermitted to true  Hope it helps

User · Answer

When you call  https   darkorbit com   your server figures that it s missing  www  so it redirects the call to  http   www darkorbit com   and then to  https   www darkorbit com    your WebView call is blocked at the first redirection as it s a  http  call  You can call  https   www darkorbit com   instead and it will solve the issue

[android] WebView showing ERR_CLEARTEXT_NOT_PERMITTED although site is HTTPS

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