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Note that the presence of \"trailers\" does not mean that the client(s) will process any particular trailer field in the response; only that the trailer section(s) will not be dropped by any of the clients. ¶ Because of the potential for trailer fields to be discarded in transit, a server SHOULD NOT generate trailer fields that it believes are necessary for the user agent to receive. ¶ 6.5.2. Processing Trailer Fields The \"Trailer\" header field ( Section 6.6.2 ) can be sent to indicate fields likely to be sent in the trailer section, which allows recipients to prepare for their receipt before processing the content. For example, this could be useful if a field name indicates that a dynamic checksum should be calculated as the content is received and then immediately checked upon receipt of the trailer fie","readmeExcerpt":"ll downstream clients are willing to accept trailer fields in the forwarded response. 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