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Our MCP server was fine. Cloudflare was returning HTML.

Source: DEV Community·

Summary

Three days chasing a protocol bug that was not in the protocol. The user agent matrix, the exact block page an agent receives, and the trick that proved the problem was not ours.
CategoryAI Tutorials & Practice
TierOrdinary
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Indexed by AIQB
SourceDEV Community
AIQB record IDintel-ce0279f3e665f4e58d123516
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