Grip-Channel prev-id with SSE (stream hold mode)?

[matrey]

https://pushpin.org/docs/protocols/grip/ states that prev-id only works for response hold mode

Grip-Hold: The hold mode, either response or stream. [...]
Grip-Channel: [...] The prev-id parameter is OPTIONAL and only applies to the response mode.

But then https://pushpin.org/docs/advanced/#reliability shows a code example using prev-id with stream hold mode

Reliable HTTP streaming
When creating a stream hold, any channel to be subscribed must include a prev-id value. A next link must also be provided:

HTTP/1.1 200 OK
Content-Type: text/plain
Grip-Hold: stream
Grip-Channel: fruit; prev-id=3
Grip-Link: </fruit/?after=3>; rel=next

Overall, it seems like the GRIP protocol page is obsolete (e.g. no trace of Grip-Link in it either)

[jkarneges]

Hi there,

Yes you can use prev-id with stream hold, as part of reliable streaming as you've found.

The spec has been kept lean on purpose, as a conservative starting point for a potential shared standard. Of course it would be nice to have a spec page that covers everything. We'll look into making this better.

In the meantime, if you have other protocol questions feel free to ask!