Merge pull request #253 from koic/support_cors_and_accept_wildcard_for_browser_based_mcp_clients

Support CORS and Accept wildcard for browser-based MCP clients
2026-03-15 15:31:42 +09:00 · 2026-03-15 15:31:42 +09:00 · 95200b5467
commit 95200b5467
parent a2514a0ef2 e5d3b2c135
1 changed files with 97 additions and 0 deletions
--- a/lib/mcp/server/transports/streamable_http_transport.rb
+++ b/lib/mcp/server/transports/streamable_http_transport.rb
@ -193,6 +193,8 @@ module MCP
          return not_acceptable_response(required_types) unless accept_header

          accepted_types = parse_accept_header(accept_header)
+          return if accepted_types.include?("*/*")
+
          missing_types = required_types - accepted_types
          return not_acceptable_response(required_types) unless missing_types.empty?