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lecture-3
프로젝트 실행을 해보니 itemPage에 사용되는 보드 이미지들을 로드할 수 없다고 나옵니다.
해당 이미지의 url 에는 520에러가 뜨고 접근이 불가합니다.
내용중에 질문이 있습니다.
아래 이미지 src값이 undefined값으로 나오는데
target 하위를 확인해보니 entry.target.src 로 하면 나오는데
제가 잘못이해한건지 모르겠네요~~
console.log('is intersecting',entry.target.dataset.src);
is intersecting undefined
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