Quick Cache caches 404 not found pages. There’s no option to disable this, but that isn’t my main concern. The problem is it’s serving these 404 pages with the 200 OK header status code instead of the proper 404 not found header.
This allows 404 pages to be indexed by search engines, which is obviously bad.
I prefer 404’s never be cached, but if they are a 404 status code should always be sent when serving these pages.
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