Copy and paste using mouse isn't working

[deipra-sf]

Describe the bug
When I try to copy values from Office Online and paste it to another application using mouse, it fails to do so.

To Reproduce
Steps to reproduce the behavior:

1. Open document or sheet with Office Online in Nextcloud
2. Click right mouse button on selected text and select copy
3. Paste to some other app or websites
4. Content isn't copied

Also tried using Microsoft official plugin at no success: https://chrome.google.com/webstore/detail/office-enable-copy-and-pa/ifbmcpbgkhlpfcodhjhdbllhiaomkdej?hl=en-US

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
Word at least shows notification that it doesn't work:

If applicable, add screenshots to help explain your problem.

Client details:

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]
• Device: [e.g. iPhone6, desktop]

Server details

Operating system:

Web server:

Database:

PHP version:

Nextcloud version:

Version of the officeonline app

Version of Office Online server

Logs

Nextcloud log (data/nextcloud.log)

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...