Re: [whatwg/fetch] Send "null" Origin header on cross-origin .onion requests (PR #1351)

@annevk commented on this pull request.



> @@ -2820,6 +2823,11 @@ given a <a for=/>request</a> <var>request</var>, run these steps:
  <li><p>Let <var>serializedOrigin</var> be the result of <a>byte-serializing a request origin</a>
  with <var>request</var>.
 
+ <li><p>If <var>request</var>'s <a for=request>current URL</a>'s <a for=url>origin</a>'s
+ <a for=origin>host</a> ends with "<code>.onion</code>" or "<code>.onion.</code>", and
+ is not <a>same origin</a> with <var>request</var>'s <a for=request>origin</a>, then set
+ <var>serializedOrigin</var> to `<code>null</code>`. [[ONION]]

I'm not sure I understand the examples, what's the starting origin? As long as you are same-origin I would expect a referrer to be included, but once you've gone cross-origin once, it should no longer be possible.

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