Kenneth Bergquist

Push notifications

1

https://developers.google.com/web/ilt/pwa/introduction-to-push-notifications

Identity

1

- email/phone number verifications - to log in, you must use an existing device. A request will appear on the first device to validate the request. - upon validation the...

Explain the concept of a tag: - a message can have zero or more tags - a user can be following zero or more tags at any moment - If...

Here's what [Whatsapp](https://www.whatsapp.com/security/WhatsApp-Security-Whitepaper.pdf) does: 1. The sender generates a random 32-byte Chain Key. 2. The sender generates a random Curve25519 Signature Key key pair. 3. The sender combines the 32-byte...

Scrolling issues

1

Sometimes chat segment doesn't scroll down all the way when the most recent message has a URL snippet. Same thing can happen on incoming message.