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                [TOC] <br> # 概述 返回跳轉或打開到當前頁面的那個頁面的URI <br> <br> # 語法 ~~~ var string = document.referrer ~~~ <br> <br> # 哪些場景下無法獲得上一頁referrer信息 1. 直接在瀏覽器地址欄中輸入地址; 2. 使用location.reload()刷新(location.href或者location.replace()刷新有信息); 3. 在微信對話框中,點擊鏈接進入微信自身的瀏覽器; 4. 掃碼進入QQ或者微信的瀏覽器; 5. 直接新窗口打開一個頁面; 2017.8.3更新 新版本Chrome測試,新窗口頁面依然有document.referrer 6. 從https的網站直接進入一個http協議的網站(Chrome下親測); 7. a標簽設置rel="noreferrer"(兼容IE7+); 8. meta標簽來控制不讓瀏覽器發送referer; ~~~ <meta content="never" name="referrer"> ~~~ ![](https://box.kancloud.cn/55912691dd6524f274ce4110e2231ed5_1274x435.png) 9. 等等 參考資料 [JS獲取上一訪問頁面URL地址document.referrer實踐](https://www.zhangxinxu.com/wordpress/2017/02/js-page-url-document-referrer/) [MDN](https://developer.mozilla.org/zh-CN/docs/Web/API/Document/referrer)
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