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@mattzcarey mattzcarey commented Dec 1, 2025

web standards based streamable http transport.
marked experimental

closes #260

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How Has This Been Tested?

Breaking Changes

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

@mattzcarey mattzcarey requested a review from a team as a code owner December 1, 2025 22:49
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pkg-pr-new bot commented Dec 1, 2025

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npm i https://pkg.pr.new/modelcontextprotocol/typescript-sdk/@modelcontextprotocol/sdk@1209

commit: cbaa269

mattzcarey and others added 4 commits December 2, 2025 11:04
- Fix IsomorphicHeaders type mismatch in capturedHeaders variable
- Fix replayEventsAfter mock signature to match EventStore interface
- Remove unused variables (closeSSEStreamFn, mcpServer1)
@mattzcarey mattzcarey force-pushed the feat-fetch-transport branch from 62eb340 to cbaa269 Compare December 2, 2025 12:22
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Transport for web standard fetch APIs: FetchSSEServerTransport

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