.htaccess allow only from Chrome, Opera, Mozilla, Safari, redirect from others

问题

I want to configure redirect if the user doesn't use Chrome, Safari, Opera or Mozilla.

For inverse problem (if I don't want Chrome etc.) there is a solution:

RewriteCond %{HTTP_USER_AGENT} Chrome
RewriteRule ^abcd.html$ chrome.html [NC,L]

RewriteCond %{HTTP_USER_AGENT} Safari
RewriteRule ^abcd.html$ safari.html [NC,L]

Adding ! before doesn't work

回答1:

Negation is done using the ! operator. Using the [NC] flag will also discard strings like chrome, chRome etc:

RewriteCond %{HTTP_USER_AGENT} !Chrome [NC]
RewriteRule ^abcd.html$ chrome.html [NC,L]

来源：https://stackoverflow.com/questions/39924802/htaccess-allow-only-from-chrome-opera-mozilla-safari-redirect-from-others