[Replay] SSE (text/event-stream) response body not captured - 0B recorded despite successful stream

[dalnoki]

Environment

SaaS (https://sentry.io/)

Steps to Reproduce

Replay correctly records SSE requests in the network tab (status, duration, headers), but captures 0B of response body. Individual events pushed over the stream, connection duration, event count, and close reason are all invisible.

Expected Result

Event count, connection duration, and close reason captured.
Ideally: individual SSE event payloads visible in the Replay timeline.

Actual Result

SSE request appears in the Replay network tab with status 200, but response Body Size is 0B. No stream content, individual events, event count, or close reason is recorded.

Product Area

Replays

Link

No response

DSN

No response

Version

No response

[linear-code]

ENG-7956

[getsantry]

Auto-routing to @getsentry/product-owners-replays for triage ⏲️

[bcoe]

Thanks for the bug report 👏 it's in the triage queue for our team.