So, you’re running stealth mode. Could you share the rest of your settings?
Btw, it seems to be a typical Apache ‘security’ thing set by your hosting company.
I assume it has something to do with the length of the query.
You should contact your hosting company and ask them to disable whatever rule is causing this. There’s no reason to block this, because XSS or whatever is not a risk here.
Thanks for fast reply. Those are my settings:
https://imgur.com/Zsftl20
What should I ask my support team to do? Can you be more specific?
BTW, it won’t go away if I disable “Enable Stealth Mode Lite”
After you disable it, you’ll have to manually (click) ‘update analytics.js’, then it’ll go away.
If it doesn’t go away afterwards, flush your caches.