Javax.Net.Ssl.SSLPeerUnverifiedException

[rfrailemartinez]

Error
System.OperationCanceledException: Certificate pinning failure: no root? ---> Javax.Net.Ssl.SSLPeerUnverifiedException: Hostname atc.gencat.cat not verified:\n certificate: sha256/9uy1nAAQnf8AmwpGCFkqgRDrIx2bWGGXxZOlCfoaKpc=\n DN: CN=atc.gencat.cat,O=DO_NOT_TRUST_BC,OU=Created by http://www.fiddler2.com\n subjectAltNames: [atc.gencat.cat]\n --- End of inner exception stack trace ---\n at ModernHttpClient.NativeMessageHandler.SendAsync (System.Net.Http.HttpRequestMessage request, System.Threading.CancellationToken cancellationToken) [0x00433] in <94c8f607f91b4ba1bc884851faba684e>:0 \n at System.Net.Http.HttpClient.FinishSendAsyncUnbuffered (System.Threading.Tasks.Task1[TResult] sendTask, System.Net.Http.HttpRequestMessage request, System.Threading.CancellationTokenSource cts, System.Boolean disposeCts) [0x000b3] in /Users/builder/jenkins/workspace/archive-mono/2020-02/android/release/external/corefx/src/System.Net.Http/src/System/Net/Http/HttpClient.cs:531 \n at System.Net.Http.HttpClient.GetByt eArrayAsyncCore (System.Threading.Tasks.Task1[TResult] getTask) [0x0002e] in /Users/builder/jenkins/workspace/archive-mono/2020-02/android/release/external/corefx/src/System.Net.Http/src/System/Net/Http/HttpClient.cs:190 \n

This errors appears in my case using Fiddler as proxy (with VPN).

When I use Ideine Modernhttpclient version that is older, I don´t have the problem.

Thank you