For the last couple of weeks we have been getting a popup 403 message window, then when you click OK on that a blank popup window appears which you have to click on OK to clear when accessing all new posts / products on our site https://beautifulbizarre.net It does not appear to actually block any content and you don’t get the normal full-screen “access forbidden” you get with 403 errors, but it isn’t a good look for our site. The (very temporary) fix for us is to use the Comet Cache clear cache option - but the error comes back after a few hours - and we have to clear the cache again…
The error occurs on all mobile & PC browsers. We use Cloudflare CDN and I have been onto their support but they say it is not their issue, any 403 errors from their CDN have a Cloudflare notification message.
Any ideas on this one folks?