Description

It is possible for CryptPad's read-only sheets (and presumably other OnlyOffice-based apps) to invoke a SEND_MESSAGE command via the Q_OO_COMMAND handler, found here.

When this occurs it tries to encrypt a message, but Utils.crypto.encrypt is undefined, resulting in a TypeError.

Steps to reproduce

I haven't isolated a minimal set of steps to reproduce it, but I've observed the error while viewing a read-only version of a sheet in a private window while saving edits made in strict mode in a regular session.

Minimal changes to particular cells didn't seem to trigger it, while more complex changes like inserting a column in a worksheet or reconfiguring a chart did.

Relevant logs

No response

Expected behavior

read-only sheets should abort sending outgoing messages some time before they trigger a TypeError.

What opreating system are you using?

Linux/BSD/UNIX

What browsers are you seeing the problem on?

Mozilla Firefox

Extensions

private Firefox window with all extensions disabled

Version

5.6.0