I’m using extension secret at extension client configuration.
I’ll delete key.
$base64key=“REMOVED=”; // base64 encoded key
$decodedkey = base64_decode($base64key);
printed : ���� �,qE�-��5�٭�2Q?"'z��7
base64 decode returns key with invalid characters. I created new extension secret but it returns invalid too.
Also I’m getting 401 error with that undecoded key too.