瀏覽很多網站後都會發生一個小問題，那就是瀏覽搜尋結果，當我點近物件後，再使用瀏覽器的回上一頁功能，就會出現空白頁面，並出現錯誤，以chrome為例，如下：
這個網頁需要使用您先前輸入的資料才能正確顯示。您可以重新傳送這些資料，不過這麼做會重複執行這個網頁先前執行過的任何動作。
錯誤代碼：ERR_CACHE_MISS
這通常是搜尋頁面為a.php把搜尋的結果置入b.php，當我們把搜尋結果點進去看物件的時候，就是c.php畫面，所以一般來說瀏覽器回上一頁就是進入b.php，但是問題是b.php並沒有任何值的載入，所以就會發生空白頁面與錯誤代碼：ERR_CACHE_MISS的問題，解決的方式很簡單，
請把此段程式放在 a.php 裡（最外層的頁面中，才行)
<?php
header("Cache-control: private");
?>
header("Cache-control: private");
?>
I feel very grateful that I read this. It is very helpful and very informative and I really learned a lot from it. fix err cache miss
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