Re: [quicwg/base-drafts] Initial size of dynamic table (#1530)

[Martin Thomson <[e-mail]>]

If the server has to remember what value was associated with 0-RTT, can't we agree on that?

That is, if the client attempts 0-RTT and the server accepts it, the value is set to the 0-RTT value.  We require that both peers remember the value from before, as we agreed in Montreal, so that's easy.

If 0-RTT is rejected, then it's a full handshake and they can all use the 1-RTT values.

In HPACK, we require the first header block that uses the dynamic table to include a table size update, because the table is assumed to start at 0 size (the default; also, settings might not be around when you send that header block).  In QPACK, you always know how much space there is - even if it might later increase - so why not use that?

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