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

Question

After updating my app to compile with API level 30 (Android R, 11), I can't see AdMob test ads, and I'm receiving this error in the log:

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.

I'm using the last AdMob version, and I don't have "org.apache.http.legacy" references in Gradle or manifest.

Answer 1

This might come from the webview cookie_manager.cc.

Also this: https://www.chromestatus.com/feature/5633521622188032

Same question here: How to resolved http and Site Behavior: Navigation error in android app?

It might be temporarily broken, unless they'd set the cookie as expected.

Answer 2

I'm using flutter and I'm facing the same issue while implementing banner test ads. Just add the below in android manifest file under application:

android:usesCleartextTraffic="true"

and issue will be resolved.