I recently enabled web filtering to block ads and explicit content, now occasionally I get a http 502 bad gateway error, it happened a lot yesterday when I was doing a lot of edits to our wordpress site, I would click "update" and get the 502 error, then I would have to hit the browser's back button, restore the backup of the post that wordpress helpfully made, click "update" again and it would work second time around.
Any ideas how I can fix this?
Cheers,
Paul
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