btlqql opened a new issue, #437:
URL: https://github.com/apache/rocketmq-dashboard/issues/437
## Problem
The Studio web client parses each `ReadableStream` chunk as if it contained
complete SSE lines. Network chunk boundaries are arbitrary, so an SSE event can
be split in the middle of its JSON payload. In that case the client emits the
partial payload as raw text and loses the rest of the event.
The current parser also only reads a JSON `content` field, while
`LlmGatewayStub` sends tokens in the `text` field. The bundled backend stub
therefore produces a valid SSE stream that the web client silently ignores.
## Reproduction
Return this valid event across two network chunks:
```text
event: message\r\ndata: {"text":"hel
lo"}\r\n\r\n
```
The current client treats the first half as malformed JSON instead of
buffering it until the SSE event boundary.
## Expected behavior
- Buffer bytes until a complete SSE event is available.
- Support LF and CRLF event boundaries and multiple events in one network
chunk.
- Join multiline `data:` fields according to SSE framing rules.
- Accept both the backend stub's `text` field and the existing `content`
field.
- Preserve raw text payload compatibility and flush a final event when the
stream closes.
## Proposed validation
Add frontend tests covering fragmented events, coalesced events, multiline
data, raw payloads, and the `[DONE]` sentinel.
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