Re^2: CGI error: "Invalid header value contains a newline not followed by whitespace"

On my box, that code also fails, differently. It sends the cookies, but then prints the HTTP 302 code to the browser, rather than redirecting, like so:

Status: 302 Found Location: http://localhost

However, monkeying around with your code, I made this slight adjustment (look closely to see the difference!):

print $q->header( -cookie => [ $set_session, $set_username ],
print $q->redirect('http://localhost/'));
[download]

... and lo! my script works again! :D

That's right, on my box, I will now have to insert a superfluous print in all of my cgi scripts that happen to send a redirect in the html header. How bizarre. But thanks to the both of you for the help!

FYI, I experienced this behaviour with both whatever version of CGI.pm came with Lucid (didn't check), and then with the latest from git, 3.59 I guess.

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Re^3: CGI error: "Invalid header value contains a newline not followed by whitespace" by tobyink (Canon) on Feb 04, 2012 at 09:42 UTC
The correct code is: `print $q->redirect( -uri => 'http://localhost/', -cookie => [ $set_session, $set_username ], );` [download]	[reply] [d/l]
Re^4: CGI error: "Invalid header value contains a newline not followed by whitespace" by MyMonkName (Acolyte) on Feb 04, 2012 at 21:08 UTC
Not really. Per the documentation, apache will ignore cookie headers in a redirect request.	[reply]
Re^5: CGI error: "Invalid header value contains a newline not followed by whitespace" by tobyink (Canon) on Feb 04, 2012 at 21:20 UTC
You say this because you've tried it? Or you say this because you trust the documentation? The documentation doesn't say that Apache ignores the cookie - it claims that browsers ignore cookies when they are redirected. It's wrong. They don't. (Though in some early versions of Safari there was a bug where it did. This was fixed though.) And if they did ignore cookies when redirecting, then why do you think that structuring your code slightly differently will change things? However your code works internally, if you're printing the same HTTP headers, restructuring the code won't change anything. Browsers don't see your code - they see the HTTP headers.	[reply]
Re^6: CGI error: "Invalid header value contains a newline not followed by whitespace" by MyMonkName (Acolyte) on Feb 04, 2012 at 22:21 UTC
Re^7: CGI error: "Invalid header value contains a newline not followed by whitespace" by tobyink (Canon) on Feb 04, 2012 at 23:04 UTC
Re^3: CGI error: "Invalid header value contains a newline not followed by whitespace" by Anonymous Monk on Feb 04, 2012 at 09:52 UTC
You only print headers once, either use redirect, or use header, not both `print $q->header( -status => '302 Found', -uri => 'http://localhost/', -cookie => [ $set_session $set_username ], ); __END__` [download]	[reply] [d/l]
Re^4: CGI error: "Invalid header value contains a newline not followed by whitespace" by MyMonkName (Acolyte) on Feb 04, 2012 at 21:06 UTC
But this doesn't actually redirect, which is a requirement for the particular login script where I first noticed the error on my machine.	[reply]
Re^5: CGI error: "Invalid header value contains a newline not followed by whitespace" by Anonymous Monk on Feb 05, 2012 at 06:23 UTC
But this doesn't actually redirect, which is a requirement for the particular login script where I first noticed the error on my machine. Sure it does	[reply]