There is a limit set by $CGI::POST_MAX. Setting equal to -1 make it unlimited , e.g. $CGI_POST_MAX=-1; see Setting CGI::POST_MAX with CGI::Application

Also perhaps there are other methods to use for such large files. See CGI.pm and Large File Transfers.

In reply to Re: CGI::Fast timing out with uploads of large files not small ones by Marshall
in thread CGI::Fast timing out with uploads of large files not small ones by mldvx4

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