[leeoniya]

hmmm, you might be right. i wonder what steered me away. maybe each SSE response re-sends headers, which can be larger than the message itself?

maybe it was inability to do broadcast to multiple open sse sockets from nodejs.

i should revisit.

https://medium.com/blogging-greymatter-io/server-sent-events...

[xg15]

> maybe each SSE response re-sends headers, which can be larger than the message itself?

That's (long) polling, not SSE. The only overhead for SSE are the "data", "event", etc pseudo header names and possibly some chunked-encoding markers. Both are tiny though.