I’m pretty sure it’s all about preventing clipboard snooping.
Quite similar to the Android clipboard prompt feature: https://www.xda-developers.com/android-12-beta-features-leak/#android12leakclipboardprompt
iOS: TikTok and 32 other iOS apps still snoop your sensitive clipboard data - Ars Technica
Edit: @andrei so you were right, it’s not a security feature ![]()
The team at chromium pinpointed the error to this feature: [Omnibox] Clipboard can set and detect URL mime type