If @msg is using https (or attempted to use https but got
%SOUP_STATUS_SSL_FAILED), this retrieves the #GTlsCertificate
associated with its connection, and the #GTlsCertificateFlags
showing what problems, if any, have been found with that
certificate.
<note><para>This is only meaningful with messages processed by a #SoupSession and is
not useful for messages received by a #SoupServer</para></note>
If @msg is using https (or attempted to use https but got %SOUP_STATUS_SSL_FAILED), this retrieves the #GTlsCertificate associated with its connection, and the #GTlsCertificateFlags showing what problems, if any, have been found with that certificate.
<note><para>This is only meaningful with messages processed by a #SoupSession and is not useful for messages received by a #SoupServer</para></note>