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## 1.46.5

**`(fix):`** Honor the OAuth client-credentials token endpoint's declared request content-type
instead of unconditionally forcing `application/x-www-form-urlencoded`. Token
endpoints that consume `application/json` now send `Content-Type: application/json`,
while form-urlencoded remains the default when the spec does not declare a content-type
(per RFC 6749 §4.4.2). Previously a JSON token endpoint received an HTTP 415 that
surfaced as a generic 401.