Re: [quicwg/base-drafts] Add Advice and Rules for CONN_CLOSE in Initial and Handshake (#1786)

[ianswett <[e-mail]>]

If the Initial arrives with frame types that aren't valid in the Initial, you're going to have to decide how to handle it.  This could easily happen after you receive a valid frame.  But even if the STREAM frame is the only thing in the invalid Initial, it's effect would be to close the connection, correct?

By reading your 3 items, it seems like at some point we should mostly ignore Initial packets, but send an ACK?

I think the sender text is fairly straightforward, but we have 3 options I'm aware of on the receiver side:
1) Require implicit ACKs.
2) Instruct the receiver to ACK Initial encryption after receiving Handshake, but not process them.
3) Decide we don't care about injection attacks.

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