My "Copy to Clipboard" button has stopped working?

The very useful copy button (the two squares) that is available throughout the web (Firefox & Chromium) has stopped working. The browser address is of the form: http://ip-address:8123.

The pop-up still pops-up but there is nothing in my PCs clipboard?
If I am in an editor (say Developer Tools | Template) I can highlight the Ctl-C & Ctl-V.
But the button is so incredibly useful and I miss it.
Any suggestions to get it back?

Regards,
Martin

Known issue on the latest 2026.3 release. People have posted about it in the main release thread already.
IIRC there’s an issue raised on the Frontend GitHub & it’s being looked into.

And the issue only shows up if you are using http. If you have a Nabu Casa subscription or other way to access via https, then it should work.

I can use it local from Firefox (using http: URL) and also using NabuCasa via https. But is doesn’t work using the “App”. (MacOS version, although iPadOS works, weird)