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Varnish 4 - Strip browser side tracking script to improve cache hit rate
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| sub vcl_recv { | |
| # Strip browser side tracking script to improve cache hit rate | |
| if (req.url ~ "[?&](utm_source|utm_medium|utm_campaign|gclid|cx|ie|cof|siteurl|mc_cid|mc_eid)=") { | |
| set req.url = regsuball(req.url, "(?:(\?)?|&)(?:utm_source|utm_medium|utm_campaign|gclid|cx|ie|cof|siteurl|mc_cid|mc_eid)=[^&]+", "\1"); | |
| set req.url = regsuball(req.url, "(?:(\?)&|\?$)", "\1"); | |
| } | |
| } |
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