Clipboard access issue

[chris-fj]

Hello, everyone.

I am having trouble when trying to access the clipboard, because when I try to copy from a document, I receive this error

Permissions policy violation: The Clipboard API has been blocked because of a permissions policy applied to the current document

My stack is collabora on top of ownCloud, behind Traefik, all running in Docker. The versions are:

Collabora:

COOLWSD version: 24.04.1.4
git hash: [f12ee1f]

ownCloud: 10.14.0 (stable)

As noted by a kind maintainer (vmiklos) in the Collabora discussion page (CollaboraOnline/online#9038), The "Advanced integration" section in the docs (https://sdk.collaboraonline.com/docs/advanced_integration.html#allow-the-clipboard-permission-query) specifies that the iframe of Collabora must contain the attributes clipboard-read and clipboard-write, none of which are present in the HTML when opening and inspecting the elements of a document (and they should be).

Thanks for your attention

[krzys-h]

I started running into this issue after a recent upgrade, so this is definitely a regression. I'm not certain which component is causing this problem as I upgraded everything at once, but I can confirm that another server running nextcloud + their version of the integration with the same version of Collabora works fine, so it's either this app, or owncloud itself.