결제창 오픈시 오류 봐주세요.;;

결제연동

payment-gateway-sand…4924545f0bb2abd85:1 Access to fetch at 'https://services-dev.tosspayments.com/unleash/api/frontend?sessionId=408965795&appName=nextjs&environment=default' from origin 'https://payment-gateway-sandbox.tosspayments.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
_app-cf27bdc532bfeaf6.js:1
GET https://services-dev.tosspayments.com/unleash/api/frontend?sessionId=408965795&appName=nextjs&environment=default net::ERR_FAILED
_app-cf27bdc532bfeaf6.js:1 Unleash: unable to fetch feature toggles TypeError: Failed to fetch
at _app-cf27bdc532bfeaf6.js:1:92618
at t.<anonymous> (_app-cf27bdc532bfeaf6.js:25:23657)
at _app-cf27bdc532bfeaf6.js:25:5382
at Object.next (_app-cf27bdc532bfeaf6.js:25:5487)
at _app-cf27bdc532bfeaf6.js:25:4335
at new Promise (<anonymous>)
at o (_app-cf27bdc532bfeaf6.js:25:4084)
at t.fetchToggles (_app-cf27bdc532bfeaf6.js:25:22824)
at t.initialFetchToggles (_app-cf27bdc532bfeaf6.js:25:22697)
at t.<anonymous> (_app-cf27bdc532bfeaf6.js:25:20086)