Strict Secure Cookie policy error in Admob after updating to Android 11

Bug report

Native ad cause crash app on simulator Android, API 30

Describe the bug https://stackoverflow.com/questions/64605612/strict-secure-cookie-policy-error-in-admob-after-updating-to-android-11

Steps to reproduce

Steps to reproduce the behavior:

1. Config native ad as codelab https://codelabs.developers.google.com/codelabs/admob-inline-ads-in-flutter#7
2. Run app on Android simular with API 30

Expected behavior

Firstly app run success but after 3s it was crash and throw the error:

Strict Secure Cookie policy does not allow setting a secure cookie for
http://googleads.g.doubleclick.net/ for apps targeting >= R. Please either use the 'https:' scheme for 
this URL or omit the 'Secure' directive in the cookie value.

[erickcchoi]

Exact same issue here, Hope them to fix the problem asap.

[QFREY]

This is the solution

Go to android -> app -> src -> main -> AndroidManifest.xml

Paste this in the AndroidManifest.xml in the application tag android:usesCleartextTraffic="true" it should look something like this when you are done

    <application
    android:label="Your app name"
    android:name="${applicationName}"
    android:icon="@mipmap/ic_launcher"
   android:usesCleartextTraffic="true">

this will make no difference in the emulator if you want the emulator to work as well do the following

go to android -> app -> src -> debug-> AndroidManifest.xml

open the AndroidManifest.xml then you have to add this code below the manifest tag

<application android:usesCleartextTraffic="true"/>

Now the ads will work in the emulator as well.