Implementing custom HTML in Wordpress

As you will know from the last post, I’m working on getting Lincoln’s election data into the Open Election Data project. RDFa-ifying the content on our website was fairly straightforward involving me having to add funky attributes to the HTML pages. The next step, however, was a bit tougher as links to the pages had to be discoverable. Again, this involved adding some custom RDFa attributes to the HTML – this was not possible in our admin system without some severe jiggery-pokery, so I turned to the recently launched

What should have been straightforward, however, still proved problematic. I set up this post initially and grit my teeth upon the first publish when I realised that WordPress had filtered out all the RDFa goodness. This is down to the built in kses filter which ensures that no ‘dodgy’ code is put into posts and comments. Comments I’m more than happy to have protected but, as I’m the one who controls the posts, I was more than a little grumpy that I was being denied free regin.

I did some digging, came up with a number of people having the same problem, tried editing the kses file, hit head on wall and then eventually came across this plugin. It’s a beauty of a plugin and does exactly what I needed – allows you free reign to add whatever HTML you want to your WordPress posts. Installed, activated and now the ward list on is fully RDFa-ified. Simples.

So, if you need to fiddle the HTML, maybe adding some RDFa or microformats, on your WordPress blog, make sure you fire that plugin up.



  1. Unfortunately, I think this solution only applies if you’re hosting WordPress yourself. For us poor users, we are still slaves to whatever WP have installed — and they still forbid Javascript! 😦

  2. You make a very good point there however I can also see why restricts itself in such ways – total open-ness leads to opening yourself ( up to malicious attacks which is not good for the customers. If you’re in a situation where you’re controlling your own environment you can start to be a bit more open about what you do with the technology you’re using.

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