robwod

1. Login to Cloudflare
2. Choose your site from the list
3. Selecting the "Caching" Icon from the top menu
4. Choose "Purge Individual Files"
5. Paste the URL to your post in the provided text area
6. Click the blue Purge button

That should do it. Worst case scenario is you'll need to "purge everything". Not sure if that's available on the free options, but on the paid it is.

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NSFW