javascript - IE did not set document.referrer

Question

I observed it closely by debugging in IE that; IE did set document.referrer if I submit form or click any link but when I redirect to another page using javascript window.location, IE did not set document.referrer.

Answer 1

INFO: Internet Explorer Does Not Send Referer Header in Unsecured Situations

When linking from one document to another in Internet Explorer 4.0 and later, the Referer header will not be sent when the link is from an HTTPS page to a non-HTTPS page. The Referer header also will not be sent when the link is from a non-HTTP(S) protocol, such as file://, to another page.

Microsoft