Error parse response safari

Hi,
I'm facing a strange issue into the website.
It seems that only in Safari randomly we are getting an error and the page is not rendered.
By checking the device logs we found this occurrences:

16:48:10 E com.apple.WebKit.Networking(CFNetwork)[489] <Error>: Task <6CA60ED4-F90C-4E0E-96CB-CA77A52C1C82>.<1798> HTTP load failed, 6924/1290 bytes (error code: -1017 [4:-1])
16:48:10 E com.apple.WebKit.Networking(CFNetwork)[489] <Error>: Task <6CA60ED4-F90C-4E0E-96CB-CA77A52C1C82>.<1798> finished with error [-1017] Error Domain=NSURLErrorDomain Code=-1017 "cannot parse response" UserInfo={kCFStreamErrorCodeKey=-1, NSUnderlyingError=0x11680ec00 {Error Domain=kCFErrorDomainCFNetwork Code=-1017 UserInfo={NSErrorPeerAddressKey=<private>, kCFStreamErrorCodeKey=-1, kCFStreamErrorDomainKey=4}}, NSURLErrorFailingURLSessionTaskErrorKey=<private>, NSURLErrorRelatedURLSessionTaskErrorKey=<private>, NSLocalizedDescription=cannot parse response, NSErrorFailingURLStringKey=<private>, NSErrorFailingURLKey=<private>, kCFStreamErrorDomainKey=4}

Anyone that can give us a suggestion?
Error parse response safari
 
 
Q