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Cache Invalidation Magic with Wildcards

The two hardest things in computer science are: naming things, off-by-one errors, and cache invalidation. This post is about the latter, specifically, how to invalidate your users’ browser cache when your static files have changed.

I found out about this one weird trick (doctors hate him) a few years ago but I think it bears ...

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Fixing Adsense Not Displaying (In Wordpress)

Recently a client was having issues with Adsense units not displaying on their WordPress blog. All the usual troubleshooting steps didn’t reveal anything, and the problem was made even more confusing by the fact that ads would display in the sidebar, while the exact same ad unit in the content section wouldn’t show ...

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