Re: [ALUG] A very simple/silly HTML question about 204 response

On Sat, Jan 21, 2012 at 04:25:20PM +0000, Chris Green wrote:

I want to have a CGI script return a 204 response so that the calling page doesn't change but I can't get it to work cleanly such that I don't get an error as follows:-

Internal Server Error

The server encountered an internal error or misconfiguration and was
unable to complete your request.

Please contact the server administrator, webmaster@localhost and inform
them of the time the error occurred, and anything you might have done
that may have caused the error.

More information about this error may be available in the server error log.

The CGI script is currently just:-

echo HTTP/1.0 204 No Change               
echo Content-type: text/html
echo

... and the answer is very simple, it should be:-

echo Status: 204 No Change echo

The apache error log says:-

[Sat Jan 21 16:19:24 2012] [error] [client 192.168.1.4] malformed
header from script. Bad header=HTTP/1.0 204 No Change: wikiedit.cgi,
referer: http://wiki/info:money:jessica?do=edit

It was searching for this plus "204 No Change" that found the answer. I got the "HTTP/1.0 204 No Change" from one of the few pages that told how to do it (wrong!).