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insparrow/preserve_gclid_arg_in_referring_url

Created June 27, 2014 00:18
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Using mod_rewrite to preserve url args (such as gclid) throughout your site
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preserve_gclid_arg_in_referring_url
RewriteEngine on
# If 'gclid' argument exists in referring URL and this is an article,
# append argument to requested URL.
RewriteCond %{QUERY_STRING} !^gclid=
RewriteCond %{REQUEST_URI} ^/articles\/(.*)$ [NC]
RewriteCond %{HTTP_REFERER} ^(.*)?gclid=([^&]+)
RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1?gclid=%2 [QSA,L]
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