Htaccess重定向网址无法正常工作。 重定向仅适用于页面刷新或在新选项卡中打开时

When I enter URL, htaccess redirect it to 404 page. But when I refresh that page, it started working. I don't know why this is happening. Please suggest me how do I fix that problem.

URL :

http://localhost/mydomain/private_memorial&user_id=12&page_id=5

htaccess:

RewriteRule

private_memorial&user_id=([A-Za-z0-9_-]+)&page_id=([A-Za-z0-9_-]+)$

index.php?link1=private_memorial&user_id=$1&page_id=$2 [NC,QSA]