[ASK] C# Webbrowser control cannot change referer.

Hi there,

Now I'm still trying to build a custom webbrowser using webbrowser control. But today, I found a problem in referer.
When I put this code :

wb.Navigate(_domainClick, null, null, "Referer: " + _linkBefore);

And I check it on Google analytics & Histats the result is just http:// and the domain name is missing.
Is there any clue to fix my issue?

Thanks & Regards.