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Asked: 2026-05-19T01:54:28+00:00

I’m trying to redirect all requests to a domain from a particular user-agent to

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I’m trying to redirect all requests to a domain from a particular user-agent to a subdomain. My rule is as follows:

RewriteEngine  on
RewriteCond %{HTTP_USER_AGENT}  ^Test Agent/(.*)$ // <-- Line 4
RewriteRule ^(.*)$         https://test.domain.com/$1          [L,302]

But all I get when starting the web server is:

Syntax error on line 4 of /var/www/misafe/internal/misafe-old.conf:
RewriteCond: bad flag delimiters

It looks OK to me but I’m obviously missing something and the error is not helping much. Any ideas?

Thanks,
J

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1 Answer

  1. Editorial Team

    There are 2 bugs:

    First:

    RewriteCond %{HTTP_USER_AGENT}  ^Test Agent/(.*)$

    You need to escape the space and forward slash in your regular expression pattern.

    RewriteCond %{HTTP_USER_AGENT}  ^Test\ Agent\/(.*)$

    Second:

    RewriteRule ^(.*)$         https://test.domain.com/$1          [L,302]

    302 is a redirect HTTP status code, but you didn’t specify that you are redirecting.

    RewriteRule ^(.*)$         https://test.domain.com/$1          [L,R=302]
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