feat(cursor): add HTTP/1.1 compatibility transport - #1903
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Path: .coderabbit.yaml Review profile: ASSERTIVE Plan: Pro Plus Run ID: 📒 Files selected for processing (4)
Included review availability: Your plan includes up to 10 reviews per rolling hour; 7 remain after this review. 📝 WalkthroughWalkthroughCursor now supports an opt-in HTTP/1.1 compatibility transport for Cursor inference and model discovery. The dashboard, provider types, localized strings, tests, shared HTTP-version helpers, and documentation expose this setting. ChangesCursor HTTP transport
Estimated code review effort: 5 (Critical) | ~90 minutes Merge Risk: 🟠 High · up to The opt-in HTTP/1.1 transport can expose OAuth credentials when discovery uses plaintext HTTP, and its append path can turn pre-connect failures into non-retryable request failures. These unresolved security and reliability risks should be fixed before merge. Sequence Diagram(s)sequenceDiagram
participant ProviderCatalog
participant LiveCursorTransport
participant CursorHttp1BidiConnection
participant CursorEndpoints
ProviderCatalog->>LiveCursorTransport: select configured upstreamHttpVersion
LiveCursorTransport->>CursorHttp1BidiConnection: open HTTP/1.1 connection
CursorHttp1BidiConnection->>CursorEndpoints: start RunSSE
LiveCursorTransport->>CursorHttp1BidiConnection: write Connect frame
CursorHttp1BidiConnection->>CursorEndpoints: post BidiAppend message
CursorEndpoints-->>CursorHttp1BidiConnection: stream output and append response
CursorHttp1BidiConnection-->>LiveCursorTransport: emit data and lifecycle callbacks
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 3
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Inline comments:
In `@src/adapters/cursor/http1-bidi.ts`:
- Around line 273-276: Update the BidiAppend flow in the HTTP/1 transport so
this.committed and callbacks.onCommitted() are executed only after fetchImpl
receives the append response. Remove the pre-request commit in the current
committed guard, while preserving the existing one-time guard and leaving
pre-connect failures uncommitted and retryable.
In `@src/adapters/cursor/live-models.ts`:
- Around line 97-114: Validate the parsed base URL in
fetchCursorUsableModelsHttp1Once before constructing or invoking fetch, and
return the existing local discovery failure result when its protocol is not
https:, preventing Bearer credentials from being sent over HTTP. Preserve valid
HTTPS behavior and add a regression test using an http:// baseUrl that verifies
the injected fetch implementation is not called.
In `@tests/cursor-http1-transport.test.ts`:
- Around line 91-167: Add a focused failure-path test beside the existing Cursor
HTTP/1 transport test: make the injected fetch succeed for RunSSE but reject
before returning a response for BidiAppend, then run and drain the transport
while expecting rejection and assert requestCommitted() remains false. Reuse the
existing provider and transport setup patterns, ensuring cleanup via
transport.close().
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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Run ID: 05eadeb6-6e19-4564-a221-5616aef8ec67
📒 Files selected for processing (32)
docs-site/src/content/docs/guides/providers.mddocs-site/src/content/docs/reference/adapters.mddocs-site/src/content/docs/reference/configuration/providers.mddocs-site/src/content/docs/zh-cn/guides/providers.mddocs-site/src/content/docs/zh-cn/reference/adapters.mddocs-site/src/content/docs/zh-cn/reference/configuration/providers.mdgui/src/components/provider-workspace/ProviderSettings.tsxgui/src/components/provider-workspace/types.tsgui/src/hooks/useJsonConfigEditor.tsgui/src/hooks/useProviderAccountPools.tsgui/src/i18n/de.tsgui/src/i18n/en.tsgui/src/i18n/fr.tsgui/src/i18n/ja.tsgui/src/i18n/ko.tsgui/src/i18n/ru.tsgui/src/i18n/tr.tsgui/src/i18n/zh-TW.tsgui/src/i18n/zh.tsgui/src/pages/providers-shared.tsgui/src/provider-workspace/catalog.tsgui/tests/provider-settings-cursor-transport.test.tsxsrc/adapters/cursor/http1-bidi.tssrc/adapters/cursor/live-models.tssrc/adapters/cursor/live-transport.tssrc/codex/catalog/provider-fetch.tssrc/lib/upstream-http-version.tssrc/server/responses/fetch-helpers.tssrc/types.tsstructure/04_transports-and-sidecars.mdtests/cursor-hardening.test.tstests/cursor-http1-transport.test.ts
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Summary
upstreamHttpVersion: "http1.1"/"h1"usesAgentService/RunSSEfor server output and sequencedBidiService/BidiAppendunary requests for client messages.GetUsableModelsdiscovery.upstream/devat2338d300e; source commits ared9c486480and709f1ab76.Dashboard
Verification
cursor/claude-opus-5completed a streamed response withupstreamHttpVersion: "http1.1".bun run typecheckbun test tests/cursor-http1-transport.test.ts tests/cursor-hardening.test.ts tests/cursor-live-transport.test.ts tests/upstream-http-version.test.ts— 63 passed.bun run privacy:scancd gui && bun test tests— 936 passed.cd gui && bun run lintcd gui && bun run lint:i18ncd gui && bun run buildHTTP_PROXY. Re-running all 8 affected files with proxy variables removed passed 139/139.Checklist
Review readiness checklist
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All CI tests are green on my local testing.
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Summary by CodeRabbit
New Features
Documentation