imwill.com » cache http://imwill.com Automation, Software Development, Web Technologies. Sat, 21 Apr 2012 12:18:00 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 How to avoid cache-pollution with TYPO3 http://imwill.com/avoid-cache-pollution-with-typo3/?utm_source=rss&utm_medium=rss&utm_campaign=avoid-cache-pollution-with-typo3 http://imwill.com/avoid-cache-pollution-with-typo3/#comments Sat, 18 Jul 2009 14:23:56 +0000 Hendrik Will http://imwill.com/?p=8 Did you ever wonder about URLs containing parameters like this: domain.tld/page.html&L=1print=1print=1print=1print= and so on. It would also be possible to abuse it for spam like this: domain.tld/page.html&L=1_buy-viagra-at_www.viagra-spam.url

You can avoid this cache-pollution by specifying a range of valid values for your linkVars configuration. You can append the values in round brackets to your L-params. It’s also possible to use regular expressions here.

Example:

config {
linkVars = L(1-5), print(1)
}

Otherwise it can happen that TYPO3 puts malformed URLs in your cache and your clients will get mad.
You can find more examples in TSref at typo3.org.

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