【Ajax/Promise】やっぱ？だめ？？を解決「XMLHttpRequest cannot load localhost:3000/sub/comments. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource」

766 × 56 【Chrome/Ajax,Promise/ローカルサーバー】これが出たらやる9つのこと「XMLHttpRequest cannot load localhost:3000/sub/comments. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource」
【Ajax/Promise】やっぱ？だめ？？を解決「XMLHttpRequest cannot load localhost:3000/sub/comments. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource」

【Ajax/Promise】やっぱ？だめ？？を解決「XMLHttpRequest cannot load localhost:3000/sub/comments. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource」

【Ajax/Promise】やっぱ？だめ？？を解決「XMLHttpRequest cannot load localhost:3000/sub/comments. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource」