Well, the referer is set by the browser, so it is the browser that it not setting said HEADER. I'm not sure it is mandatory to be set either [1], so it might be

Well, the referer is set by the browser, so it is the browser that it not setting said HEADER. I'm not sure it is mandatory to be set either [1], so it might be correct correct behaviour according to the spec, even though it's not what might be expected. [1] http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.36 http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14...