hsleonis/meta-referer.html

## meta-referer.html
# HTML Inline:
To make specific link send no referer url:
    <a rel="noreferrer" href="http://w3schools.com">Link</a>

# JQuery method:
<script>
  $(function(){
    $("a").attr('rel','noreferrer');
  });
</script>

# Meta tag:
The meta referrer tag is placed in the <head> section of your HTML,
and references one of five states, which control how browsers send referrer information from your site.

The five states are:

  1.  None: Never pass referral data

    <meta name="referrer" content="none">

  2.  None When Downgrade: Sends referrer information to secure HTTPS sites, but not insecure HTTP sites

    <meta name="referrer" content="none-when-downgrade">

  3.  Origin Only: Sends the scheme, host, and port (basically, the subdomain) stripped of the full URL as a referrer, i.e. https://moz.com/example.html would simply send https://moz.com

    <meta name="referrer" content="origin">

  4.  Origin When Cross-Origin: Sends the full URL as the referrer when the target has the same scheme, host, and port (i.e. subdomain) regardless if it's HTTP or HTTPS, while sending origin-only referral information to external sites. (note: There is a typo in the official spec. Future versions should be "origin-when-cross-origin")

    <meta name="referrer" content="origin-when-crossorigin">

  5. Unsafe URL: Always passes the URL string as a referrer. Note if you have any sensitive information contained in your URL, this isn't the safest option. By default, URL fragments, username, and password are automatically stripped out.

    <meta name="referrer" content="unsafe-url">
	# HTML Inline:
	To make specific link send no referer url:
	<a rel="noreferrer" href="http://w3schools.com">Link</a>

	# JQuery method:
	<script>
	$(function(){
	$("a").attr('rel','noreferrer');
	});
	</script>

	# Meta tag:
	The meta referrer tag is placed in the <head> section of your HTML,
	and references one of five states, which control how browsers send referrer information from your site.

	The five states are:

	1. None: Never pass referral data

	<meta name="referrer" content="none">

	2. None When Downgrade: Sends referrer information to secure HTTPS sites, but not insecure HTTP sites

	<meta name="referrer" content="none-when-downgrade">

	3. Origin Only: Sends the scheme, host, and port (basically, the subdomain) stripped of the full URL as a referrer, i.e. https://moz.com/example.html would simply send https://moz.com

	<meta name="referrer" content="origin">

	4. Origin When Cross-Origin: Sends the full URL as the referrer when the target has the same scheme, host, and port (i.e. subdomain) regardless if it's HTTP or HTTPS, while sending origin-only referral information to external sites. (note: There is a typo in the official spec. Future versions should be "origin-when-cross-origin")

	<meta name="referrer" content="origin-when-crossorigin">

	5. Unsafe URL: Always passes the URL string as a referrer. Note if you have any sensitive information contained in your URL, this isn't the safest option. By default, URL fragments, username, and password are automatically stripped out.

	<meta name="referrer" content="unsafe-url">