[Standards] dialback: piggybacking

[Peter Saint-Andre]

Philipp Hancke wrote:
> Peter Saint-Andre wrote:
>>> Reads okay ... but as you said it should be specified how error flows
>>> are handled. I.e. how a server not supporting piggybacking does
>>> refuse its use and how a server trying to do piggybacking has to
>>> react when the other server refuses its use.
>>
>> Yes, let's fix that up.
> 
> What about signalling support in the stream feature?
> Like
> <stream:features>
>   <dialback xmlns='urn:xmpp:features:dialback'>
>     <required/>
>     <piggybacking/>
>   </dialback>
> </stream:features>
> 
> This might avoid some of the error cases.

True. But it doesn't help with "XMPP 0.9" servers.

/psa
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