Firewall issues...

[Infrasonic]

Got a 502 a while back (across multiple OS'), just tried to upload a screenshot of that issue and got another firewall issue (cross site scripting I think).
May want to back off some of the settings a tad...

[XFool]

Got a 502 a while back (across multiple OS'), just tried to upload a screenshot of that issue and got another firewall issue (cross site scripting I think).
May want to back off some of the settings a tad...

The image suggested it wasn't the firewall so much as a timeout of the servers:

Hosting Server Read Timeout
HTTP 502 — Unable to Connect to the Origin Server

[Infrasonic]

What is going on:

Origin server might be down

Website firewall network blocked by origin firewall

[Infrasonic]

Access Denied - Website Firewall
If you are the site owner (or you manage this site), please whitelist your IP or if you think this block is an error please open a support ticket and make sure to include the block details (displayed in the box below), so we can assist you in troubleshooting the issue.

Block details:
Your IP: 92.40.170.110 (this will be the CGNAT IPv4 of my ISP Three and I've just done a blocklist check and it's got three listings- Anonmails DNBSL, BARRACUDA and Spamhaus Zen)
URL: http://www.lemonfool.co.uk/posting.php? ... 21&t=40401
Your Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Block ID: XSS014
Block reason: An attempted XSS (Cross site scripting) was detected and blocked.
Time: 2023-08-24 05:55:32
Server ID: 13003

This is what I got when trying to post the screenshot of the first 502 issue (hosting the image on Imgur).
Obviously with recent events I get it, but some workarounds may need to be found in terms of allow/grey listing or CDN style bot challenge alerts otherwise the site is going to be somewhat clunky to use...