what is kCFErrorDomainCFNetwork Code=303

Question

I tried to post my textFiled data to Server.but when posting I got this error:

Error: Error Domain=kCFErrorDomainCFNetwork Code=303 \"The operation co

Answer 1

kCFErrorHTTPParseFailure      = 303,

The HTTP server response could not be parsed.

From https://developer.apple.com/documentation/cfnetwork/cfnetworkerrors/kcferrorhttpparsefailure