谷歌不允許這樣訪問。
本地部署網站web
將html頁面部署到服務器再訪問。
如何部署？
第一步
開啟windows系統下的IIS服務
第二步
找到IIS管理器
第四步
右擊網站-添加網站
第五步：部署
第六步：地址欄輸入正確的路徑
正確路徑：（和你本地直接打開是一樣的，只是把前面的盤符換成localhost）
或者：
右擊該頁面，瀏覽
Access to XMLHttpRequest at '6%E6E6%B%9A%9' from origin from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol scheme
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from origin ‘null‘ has been blocked by CORS policy: Cross origin requests are only supported for pro
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Access to XMLHttpRequest at 'http://localhost:8090/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
error - image - Access to image at '' from origin 'null' has been blocked by CORS policy:
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ElementUI項目請求SpringBoot后台項目時提示：Access to XMLHttpRequest at **from origin ** has been blocked by CORS policy
解決本地瀏覽器運行項目時的跨域問題-Access to XMLHttpRequest at"xxx/xxx" from origin 'null' has been blocked by CORS policy