It is possible to disable logging info in tallyhttp.log file from Tally.ERP 9 Series A Release 4.8 onwards. At times, programmers would not want to log certain sensitive HTTP Information, in spite of HTTP logs being enabled in developer mode.
In order to explicitly control the logs, the requestor can additionally send a Header DISABLELOG and set the value to Yes, which will disable the current log, irrespective of the configuration or the mode in which Tally is running.
The default value is NO, i.e., in the absence of this Header, the HTTP information will be logged to the file TallyHTTP.log, if TallyPrime Second is working in developer mode and HTTP log is enabled in configuration.