origin ‘http://localhost:8080‘ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin‘
跨域問題： 我的解決： 1）如果使用谷歌瀏覽器，右鍵谷歌瀏覽器選擇屬性，添加一些不安全或者個人配置 "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-web-security --user-data-dir=C:\MyChromeDevData 2）後端controller加入註解 還有其他方法，沒試
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