🟦 fecth CATCH 오작동

🔹 throw new Error(${res.status});

🔹 return res.text().then(text => {throw new Error(text)})

🔹 res.status === 200

fetch(URL)
            .then(res => {
                if (res.statusCode === 200) {
                    return res.json();
                } 
                return res.text().then(text => {throw new Error(text)})
            }).then(myJson => {
                console.log(myJson);
                if (myJson.length) {
                    this.itemLength = myJson.length;
                    this.makeFeedList(myJson);
                } else {
                    console.log('게시물 없음');
                    feedElem.innerHTML = '<img src="/img/feed/empty.jpg" class="img-thumbnail wh400">';
                }
            }).catch(err => {
                console.log('에러 : ' + err);
                feedElem.innerHTML = '<img src="/img/feed/error.png" class="img-thumbnail wh400">';
            }).then(() => {
                this.hideLoading();
            });

🔹 res.ok

fetch(URL)
            .then(res => {
                if (res.ok) {
                    return res.json();
                } 
                return res.text().then(text => {throw new Error(text)})
            }).then(myJson => {
                console.log(myJson);
                if (myJson.length) {
                    this.itemLength = myJson.length;
                    this.makeFeedList(myJson);
                } else {
                    console.log('게시물 없음');
                    feedElem.innerHTML = '<img src="/img/feed/empty.jpg" class="img-thumbnail wh400">';
                }
            }).catch(err => {
                console.log('에러 : ' + err);
                feedElem.innerHTML = '<img src="/img/feed/error.png" class="img-thumbnail wh400">';
            }).then(() => {
                this.hideLoading();
            });