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Change Request
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    Resolution: Fixed
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Trivial
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    None
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    2.0.4
 
The API docs do not clearly state that Zabbix requires that API users set the HTTP Content-Type header to application/json.
If users do not set the content type, they get a strange HTTP error: 412 Precondition Failed.
Would it be possible to add a note to https://www.zabbix.com/documentation/2.0/manual/appendix/api/generic that states this?