request.getHeader - referer

[Mark Fitz]

Hi,

I am having some basic problems with
request.getHeader("referer");

It produces a null every time I try to link to my page.

I've tried all these
request.getHeader("referer");
request.getHeader("Referer");
request.getHeader("REFERER");

I think it may be due to a resin configuration or something as I
believe the headers are not being set/forwarded corretcly.

Any ideas on a rememdy?

TIA,
Mark.

 

[Andrew Thompson]

request.getHeader("referer"); ....
I've tried all these ...

Stop guessing. Find out what the headers are, using..
HttpServletRequest.getHeaderNames()

 

[sks]

Hi,

I am having some basic problems with
request.getHeader("referer");

It produces a null every time I try to link to my page.

I've tried all these
request.getHeader("referer");
request.getHeader("Referer");
request.getHeader("REFERER");

Well it's referer lower case.

But it only works if you've clicked a link. If you type something in at the
url bar the referer will always be null.

 

[Murray]

Well it's referer lower case.

But it only works if you've clicked a link. If you type something in at the
url bar the referer will always be null.

Or if your browser/firewall chooses not to set the referer header (depending
on security settings)

 

[hiwa]

Stop guessing. Find out what the headers are, using..
HttpServletRequest.getHeaderNames()

And referer can be null. If you don't find it in the getHeaderNames()
return value, it is null.

HTTP header name is case insensitive.

 

[Mark Fitz]

Or if your browser/firewall chooses not to set the referer header (depending
on security settings)

Thanks guys, this was indeed the case - I had installed Zone Alarm Pro
(trial)which was screwing up the header information... what a headache
trying to figure this one out!