Re: Premature end of script headers

Hello,

I see you've already resolved this... but, I thought it might be interesting if I gave an explanation for what the message means.

On 1/25/2012 6:53 PM, Pete Helgren wrote:

I am getting a "ZSRV_MSG0107: Premature end of script headers: File name
is ..." message when I attempt to run a new web app.

A program run via the CGI interface is referred to as a "CGI Script". That's what it means by "script" in this message ... your program is the "script"

A CGI script always outputs headers followed by data to the HTTP server that called it. Headers are lines of text, delimited by CRLF. A blank line (CRLF by itself) denotes the end of the headers.

Anything/everything after the headers is considered the data, or the "response body".

"Premature end" would imply that it never got the blank line that denotes the end of the headers.

So, "premature end of script headers" means that the HTTP server called your program, and your program returned control, but never sent a blank line denoting the end of the script headers.

This typically means one of the following:

1) You forgot the headers altogther
2) You forgot the blank line denoting the end
3) You sent back nothing at all.