Copy/paste does not work on Notion

Version info:

qutebrowser v3.7.0 Git commit: 2bd75916a on main (2026-09-07 14:17:23 +0200) Backend: QtWebEngine 6.11.2 based on Chromium 140.0.7339.225 with security patches up to 151.0.7922.71 (plus any distribution patches) (source: api) Qt: 6.11.2 (compiled 6.11.0)

I am running Ubuntu 24.

Does the bug happen if you start with --temp-basedir?: yes

Description Copy/paste does not work as expected on Notion.com. Copied formated objects such as callouts, or dates (@today), or mentions (@somebody) are pasted as text with sometimes added markup code.

It used to work as expected (weeks ago ?).

It works as expected with Chromium.

How to reproduce

Go to app.notion.com Type @today. Select, copy (Crtl+C), and paste (Ctrl+V).