# OAuth2 API 호출 시 CloudFront 403 에러

**URL:** <https://techchat-apps-in-toss.toss.im/t/oauth2-api-cloudfront-403/1390>\
**Category:** 개발\
**Tags:** webview\
**Created:** [11월 19, 2025, 8:35오후 UTC](https://techchat-apps-in-toss.toss.im/t/oauth2-api-cloudfront-403/1390 "2025-11-19T20:35:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![robinshins674](https://avatars.discourse-cdn.com/v4/letter/r/a5b964/32.png) [@robinshins674](https://techchat-apps-in-toss.toss.im/u/robinshins674)\
**Post date:** [11월 19, 2025, 8:35오후 UTC](https://techchat-apps-in-toss.toss.im/t/oauth2-api-cloudfront-403/1390/1 "2025-11-19T20:35:54Z")

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URL:  
[https://apps-in-toss-api.toss.im/api-partner/v1/apps-in-toss/user/oauth2/generate-token](https://apps-in-toss-api.toss.im/api-partner/v1/apps-in-toss/user/oauth2/generate-token)  
에러: “The request could not be satisfied”

Vercel 을 사용중인데 혹시 이로 인한 문제가 있을지 문의드립니다. 샌드박스에서는 정상 로그인이 되었으나 QR 테스트 중에 발생하는 문제입니다.

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<div class="post-metadata">

**Author:** ![Dylan](https://yyz1.discourse-cdn.com/flex007/user_avatar/techchat-apps-in-toss.toss.im/dylan/32/597_2.png) [@Dylan](https://techchat-apps-in-toss.toss.im/u/Dylan)\
**Post date:** [11월 20, 2025, 2:27오전 UTC](https://techchat-apps-in-toss.toss.im/t/oauth2-api-cloudfront-403/1390/2 "2025-11-20T02:27:12Z")

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안녕하세요 🙂  
서버간 통신시 mTLS 설정 / CORS 설정을 하셨을까요 ?!