title: Cordova ionic 3 android app Implement Phone auth without Captcha/ReCaptcha
body: <p>i have installed / cordova-plugin-firebase
  to send verificationPhone number
  my problem is before receiving the sms with OTP code, my app is going background and a chrome page opened and linked to my firebase account and verify &quot;i’am not robot’ … after ~5sec it closes and my app reappear in forground again and i receive an sms containing OTP code.
  so, is there away to keep my android app running in forground while opening web page in background.
  i don’t want any interruption while waition for the sms.
  any help please !
  here's my code</p>
  <pre><code>window.FirebasePlugin.verifyPhoneNumber(&quot;my phone number&quot;, timeOutDuration, function(credential) {
      console.log(credential);
  
  
      firebase.auth().signInWithCredential(signInCredential);
  }, function(error) {
      console.error(error);
  });
  </code></pre>
  <p>here's my android log
  D/CordovaActivity: Paused the activity.</p>
  <blockquote>
  <p>V/FA: Recording user engagement, ms: 41634 V/FA: Connecting to remote
  service W/ActivityThread: handleWindowVisibility: no activity for
  token android.os.BinderProxy@cbf1c1a D/libMEOW: applied 1 plugins for
  [com.ess.ess]:
  plugin 1: [libMEOW_gift.so]: V/FA: Activity paused, time: 610839869 V/FA: Connection attempt already in progress V/FA:
  onActivityCreated V/FA: Activity resumed, time: 610839913 V/FA:
  Connection attempt already in progress V/FA: Connection attempt
  already in progress W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;getInt(Ljava/lang/Object;J)I (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getObject(Ljava/lang/Object;J)Ljava/lang/Object;
  (greylist, linking, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getLong(Ljava/lang/Object;J)J
  (greylist,core-platform-api, linking, allowed) W/syndic.essyndi:
  Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, linking, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putLong(Ljava/lang/Object;JJ)V (greylist, linking,
  allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;getInt(Ljava/lang/Object;J)I (greylist, linking,
  allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;allocateInstance(Ljava/lang/Class;)Ljava/lang/Object;
  (greylist, linking, allowed) W/syndic.essyndi: Accessing hidden method
  Llibcore/io/Memory;-&gt;pokeByte(JB)V (greylist, reflection, allowed)
  Accessing hidden method Llibcore/io/Memory;-&gt;peekByte(J)B (greylist, reflection, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getInt(Ljava/lang/Object;J)I (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getLong(Ljava/lang/Object;J)J
  (greylist,core-platform-api, linking, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getObject(Ljava/lang/Object;J)Ljava/lang/Object;
  (greylist, linking, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getLong(Ljava/lang/Object;J)J
  (greylist,core-platform-api, reflection, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getInt(Ljava/lang/Object;J)I (greylist, reflection,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist,
  reflection, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getLong(Ljava/lang/Object;J)J
  (greylist,core-platform-api, reflection, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putLong(Ljava/lang/Object;JJ)V (greylist,
  reflection, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;getObject(Ljava/lang/Object;J)Ljava/lang/Object;
  (greylist, reflection, allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, reflection, allowed) W/syndic.essyndi: Accessing hidden
  method Lsun/misc/Unsafe;-&gt;getInt(Ljava/lang/Object;J)I (greylist,
  linking, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;getObject(Ljava/lang/Object;J)Ljava/lang/Object;
  (greylist, linking, allowed) I/zzdu: keyset not found, will generate a
  new one
  java.io.FileNotFoundException: can't read keyset; the pref value GenericIdpKeyset does not exist
  at com.google.android.gms.internal.firebase-auth-api.zzdy.zzc(com.google.firebase:firebase-auth@@21.0.1:10)
  at com.google.android.gms.internal.firebase-auth-api.zzdy.zza(com.google.firebase:firebase-auth@@21.0.1:1)
  at com.google.android.gms.internal.firebase-auth-api.zzaw.zzi(com.google.firebase:firebase-auth@@21.0.1:1)
  at com.google.android.gms.internal.firebase-auth-api.zzdt.zzi(com.google.firebase:firebase-auth@@21.0.1:1)
  at com.google.android.gms.internal.firebase-auth-api.zzdt.zzg(com.google.firebase:firebase-auth@@21.0.1:2)
  at com.google.firebase.auth.internal.zzk.(com.google.firebase:firebase-auth@@21.0.1:7)
  at com.google.firebase.auth.internal.zzk.zza(com.google.firebase:firebase-auth@@21.0.1:3)
  at com.google.firebase.auth.internal.RecaptchaActivity.zzb(com.google.firebase:firebase-auth@@21.0.1:9)
  at com.google.android.gms.internal.firebase-auth-api.zztr.(com.google.firebase:firebase-auth@@21.0.1:13)
  at com.google.firebase.auth.internal.RecaptchaActivity.onResume(com.google.firebase:firebase-auth@@21.0.1:43)
  at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1453)
  at android.app.Activity.performResume(Activity.java:7942)
  at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4384)
  at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4429)
  at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:52)
  at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:181)
  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:98)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2126)
  at android.os.Handler.dispatchMessage(Handler.java:107)
  at android.os.Looper.loop(Looper.java:264)
  at android.app.ActivityThread.main(ActivityThread.java:7684)
  at java.lang.reflect.Method.invoke(Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
  W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, linking, allowed) I/zzkp: Provider GmsCore_OpenSSL not
  available W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, linking, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;getObject(Ljava/lang/Object;J)Ljava/lang/Object;
  (greylist, linking, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, linking, allowed) W/syndic.essyndi: Accessing hidden method
  Lsun/misc/Unsafe;-&gt;putInt(Ljava/lang/Object;JI)V (greylist, linking,
  allowed)
  Accessing hidden method Lsun/misc/Unsafe;-&gt;putObject(Ljava/lang/Object;JLjava/lang/Object;)V
  (greylist, linking, allowed) V/PhoneWindow: DecorView setVisiblity:
  visibility = 4, Parent = null, this = DecorView@b238ff6[]
  D/ViewRootImpl[RecaptchaActivity]: hardware acceleration = true ,
  fakeHwAccelerated = false, sRendererDisabled = false,
  forceHwAccelerated = false, sSystemRendererDisabled = false
  I/InputTransport: Create ARC handle: 0x72a0bb2d20 V/PhoneWindow:
  DecorView setVisiblity: visibility = 0, Parent =
  android.view.ViewRootImpl@fff98cd, this =
  DecorView@b238ff6[RecaptchaActivity] W/System: Ignoring header
  X-Firebase-Locale because its value was null. I/System.out:
  [okhttp]:check permission begin!
  [okhttp]:not MMS!
  [okhttp]:not Email! I/System.out: [OkHttp] sendRequest&gt;&gt;
  [OkHttp] sendRequest&lt;&lt; D/Surface: Surface::connect(this=0x720a8df000,api=1) D/mali_winsys: EGLint
  new_window_surface(egl_winsys_display *, void *, EGLSurface,
  EGLConfig, egl_winsys_surface **, EGLBoolean) returns 0x3000
  D/Surface: Surface::setBufferCount(this=0x720a8df000,bufferCount=3)
  Surface::allocateBuffers(this=0x720a8df000) D/FA: Connected to remote service V/FA: Processing queued up service tasks: 4 V/FA:
  Screen exposed for less than 1000 ms. Event not sent. time: 460 V/FA:
  Activity paused, time: 610840374 D/Surface:
  Surface::disconnect(this=0x720a8df000,api=1) D/Surface:
  Surface::disconnect(this=0x71b1b7b000,api=1) D/CordovaActivity:
  Stopped the activity. V/PhoneWindow: DecorView setVisiblity:
  visibility = 4, Parent = android.view.ViewRootImpl@1d672fd, this =
  DecorView@c063bf2[MainActivity] V/PhoneWindow: DecorView setVisiblity:
  visibility = 4, Parent = android.view.ViewRootImpl@fff98cd, this =
  DecorView@b238ff6[RecaptchaActivity] I/GED: ged_boost_gpu_freq, level
  100, eOrigin 2, final_idx 24, oppidx_max 24, oppidx_min 0 D/FA:
  Application going to the background I/BufferQueue:
  SurfaceTexture-0-11798-0
  ~BufferQueueCore W/System: A resource failed to call end.  V/FA:
  Inactivity, disconnecting from the service D/CordovaActivity: Started
  the activity. V/PhoneWindow: DecorView setVisiblity: visibility = 0,
  Parent = android.view.ViewRootImpl@1d672fd, this =
  DecorView@c063bf2[MainActivity] V/FA: Activity resumed, time:
  610848380 V/FA: Connecting to remote service D/Surface:
  Surface::connect(this=0x71b1b7b000,api=1) D/mali_winsys: EGLint
  new_window_surface(egl_winsys_display *, void *, EGLSurface,
  EGLConfig, egl_winsys_surface **, EGLBoolean) returns 0x3000
  D/Surface: Surface::setBufferCount(this=0x71b1b7b000,bufferCount=3)
  Surface::allocateBuffers(this=0x71b1b7b000) V/FA: Screen exposed for less than 1000 ms. Event not sent. time: 39
  Connection attempt already in progress
  Activity paused, time: 610848420 D/FA: Connected to remote service D/CordovaActivity: Resumed the activity. V/FA: Processing queued up
  service tasks: 2 V/PhoneWindow: DecorView setVisiblity: visibility =
  0, Parent = android.view.ViewRootImpl@1d672fd, this =
  DecorView@c063bf2[MainActivity] D/LaunchNavigatorPlugin: Plugin
  action=discoverSupportedApps V/FA: Activity resumed, time: 610848474
  D/NetworkManager: toLower : wifi
  wifi : wifi
  Connection Type: wifi
  Connection Extra Info: null D/PluginManager: postMessage: networkconnection D/View: [Warning] assignParent to null: this =
  DecorView@b238ff6[RecaptchaActivity] I/InputTransport: Destroy ARC
  handle: 0x72a0bb2d20 W/System: Ignoring header X-Firebase-Locale
  because its value was null. I/System.out: [okhttp]:check permission
  begin!
  [okhttp]:not MMS!
  [okhttp]:not Email! I/System.out: [OkHttp] sendRequest&lt;&lt; D/FirebasePlugin: success: verifyPhoneNumber.onCodeSent V/FA:
  Inactivity, disconnecting from the service D/CordovaActivity: Paused
  the activity. V/FA: Recording user engagement, ms: 15452 V/FA:
  Connecting to remote service D/CordovaActivity: Stopped the activity.
  V/FA: Activity paused, time: 610863928 I/GED: ged_boost_gpu_freq,
  level 100, eOrigin 2, final_idx 24, oppidx_max 24, oppidx_min 0 V/FA:
  Connection attempt already in progress D/FA: Connected to remote
  service V/FA: Processing queued up service tasks: 2 D/FA: Application
  going to the background D/Surface:
  Surface::disconnect(this=0x71b1b7b000,api=1) V/PhoneWindow: DecorView
  setVisiblity: visibility = 4, Parent =
  android.view.ViewRootImpl@1d672fd, this =
  DecorView@c063bf2[MainActivity] V/FA: Inactivity, disconnecting from
  the service W/FirebaseAuth: [SmsRetrieverHelper] Timed out waiting for
  SMS.</p>
  </blockquote>