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Merge pull request #359 from koic/case_insensitive_accept_header

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Fix case-sensitive Accept header comparison
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Koichi ITO 2026-05-24 00:00:43 +09:00 • committed by GitHub
commit dd7dacae47
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1 changed files with 40 additions and 1 deletions
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39
test/mcp/server/transports/streamable_http_transport_test.rb
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@ -1465,6 +1465,45 @@ module MCP
assert_equal 200, response[0]
end
test "POST request with mixed-case Accept header succeeds" do
request = create_rack_request_without_accept(
"POST",
"/",
{
"CONTENT_TYPE" => "application/json",
"HTTP_ACCEPT" => "Application/JSON, Text/Event-Stream",
},
{ jsonrpc: "2.0", method: "initialize", id: "123" }.to_json,
)
response = @transport.handle_request(request)
assert_equal 200, response[0]
end
test "GET request with upper-case Accept header succeeds" do
init_request = create_rack_request(
"POST",
"/",
{ "CONTENT_TYPE" => "application/json" },
{ jsonrpc: "2.0", method: "initialize", id: "123" }.to_json,
)
init_response = @transport.handle_request(init_request)
session_id = init_response[1]["Mcp-Session-Id"]
request = create_rack_request_without_accept(
"GET",
"/",
{
"HTTP_ACCEPT" => "TEXT/EVENT-STREAM",
"HTTP_MCP_SESSION_ID" => session_id,
},
)
response = @transport.handle_request(request)
assert_equal 200, response[0]
assert_equal "text/event-stream", response[1]["Content-Type"]
end
test "GET request without Accept header returns 406" do
init_request = create_rack_request(
"POST",