[joker23]

This PR will harden node streaming and event source testing. Mainly addressing nits that were deferred from the main PRs.

Additionally, there are some documentation fixes that were also deferred.

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Overview
Hardens Node streaming and EventSource test suites and clarifies streaming transport docs—no substantive runtime changes to parseResponseHeaders beyond documentation.

Node NodeRequests streaming tests (client + server): teardown now restores Jest mocks and closes chunk queues so idle streams don’t hang teardown. New coverage asserts reader/body cancel closes the TCP connection, timeout is not applied to streaming fetches (spy on ClientRequest), and (server-node) untrusted TLS via createEventSource surfaces a cert error with no HTTP status.

NodeRequests JSDoc (both packages): documents that streaming ignores the timeout option and that callers may cancel via abort signal or body cancel.

EventSource fetch-injection tests: adds startOutcomeQueue and uses long initialRetryDelayMillis so header-edge-case tests fail fast on errors instead of waiting on reconnect loops.

httpHelpers: expands parseResponseHeaders unit tests (hostile get/forEach, missing headers, throwing getters) and updates unreadable docs to state that throwing header iteration marks headers unreadable even when get succeeds.

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[github-actions]

@launchdarkly/js-sdk-common size report
This is the brotli compressed size of the ESM build.
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Uncompressed size: 152548 bytes

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

[github-actions]

@launchdarkly/js-client-sdk-common size report
This is the brotli compressed size of the ESM build.
Compressed size: 25998 bytes
Compressed size limit: 44000
Uncompressed size: 167978 bytes

[github-actions]

@launchdarkly/js-client-sdk size report
This is the brotli compressed size of the ESM build.
Compressed size: 34386 bytes
Compressed size limit: 35000
Uncompressed size: 122562 bytes