Solution : https://service.sap.com/sap/support/notes/1622810 (SAP Service marketplace login required)
Key words :
content server sends wrong content length, latest content server build, response header, error 401 unauthorised, terms security, contentlength reason, program error, solution upgrade, related note 514500, prerequisites
Related Notes :
514500 | Importing Support Packages for the SAP Content Server |