 mTLS-only fields and you have also enabled mTLS with STRICT mode or your authorization
policy is configured to reject plain text traffic explicitly.</p></li></ul><h2 id=issue>Issue</h2><p>In authorization policy, the following are <a href=/v1.10/docs/concepts/security/#dependency-on-mutual-tls>mTLS-only fields</a>:</p><ul><li>the <code>principals</code> and <code>notPrincipals</code> field under the <code>source</code> section</li><li>the <code>namespaces</code> and <code>notNamespaces</code> field under t