self signed certificate 에러

에러

Error: unable to verify the first certificate
    at TLSSocket.onConnectSecure (node:_tls_wrap:1532:34)
    at TLSSocket.emit (node:events:527:28)
    at TLSSocket._finishInit (node:_tls_wrap:946:8)
    at TLSWrap.ssl.onhandshakedone (node:_tls_wrap:727:12) {
  code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE'
}

import https from 'https';
export const validateSessionId = (sessionId: string) => {
    const agent = new https.Agent({ rejectUnauthorized: false })
    const host = process.env.NODE_ENV === 'production' ? '0.0.0.0' : '1.1.1.1';
    const port = process.env.NODE_ENV === 'production' ? 8080 : 9999;
    const options = {
        host: host,
        port: port,
        path: '/validate',
        method: 'GET',
        agent: agent,
        headers: {
            Cookie: `sessionid=${sessionId}`,
        }
    }

    const responseTest = https.request(options, (response) => {
        console.log(response)
    })

    console.log('>>>> responseTest', responseTest)
}