The test form and mock data skipped every start variable an http node
read, so a search query or a language header was never mocked. Only a
host-position URL template, credential-keyed header/param lines and an
api-key auth now count, with one shared is_credential_key in core. A
bare "key" param, an empty credential and a bare "Bearer" are grounded
too, and an existing Dify template is never re-grounded.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
