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sse_app() ignores mount prefix, resulting in 404 from client

bugSomething isn't workingSomething isn't working

P2Moderate issues affecting some users, edge cases, potentially valuable featureModerate issues affecting some users, edge cases, potentially valuable feature

ready for workEnough information for someone to start working onEnough information for someone to start working on

Status: Closed (completed).

#412 In modelcontextprotocol/python-sdk;

· by allieus was closed on May 18, 2026

Fix SSE client handling of nested path URLs

Status: Closed (abandoned).

modelcontextprotocol/python-sdknumber 386

#386 In modelcontextprotocol/python-sdk;

· by danilpavlov was closed on May 7, 2025