Prevent the page preview in WhatsApp from withdrawing the password

[tomasfejfar]

Pitty you can't use passion to share password securely over any messenger that previews links.

When using Whatsapp you (should) get end-to-end encryption, so in transit it should be fine. And realistic attack vector is someone finding the link later after decrypting the communication. So having "disposable" link is a good way to secure it. But as whatsapp previews the link it withdraws the password.

If there was a rather simple password that could be shared along with the link, the password would not be withdrawn by simple preview. Or even a button press to withdraw the password would do. The password would still be safe because as soon as it's withdrawn by the other side it's gone - and that's realistically well before anyone can decrypt the conversation.