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[tor-bugs] #32255 [Applications/Tor Browser]: Missing ORIGIN header breaks CORS in Tor Browser 9.0

#32255: Missing ORIGIN header breaks CORS in Tor Browser 9.0
----------------------------+------------------------------------------
 Reporter:  complexparadox  |          Owner:  tbb-team
     Type:  defect          |         Status:  new
 Priority:  Medium          |      Component:  Applications/Tor Browser
  Version:                  |       Severity:  Blocker
 Keywords:  cors            |  Actual Points:
Parent ID:                  |         Points:
 Reviewer:                  |        Sponsor:
----------------------------+------------------------------------------
 Looks like there is an issue on Tor Browser 9.0 which affects our CORS
 allowance setup, at least with the dependency django-cors-headers, because
 it fails to send the expected header ORIGIN in the OPTIONS preflight. It
 works fine using the latest 8 version. We've noticed this only happens
 when the CORS request source is a .onion address, otherwise it works as
 usual.

 Example:

 public.com XHR OPTIONS >> publicapi.com (ORIGIN HEADER INCLUDED, WORKS)
 hidden.onion XHR OPTIONS >> publicapi.com (MISSING ORIGIN HEADER, BREAKS)
 hidden.onion XHR OPTIONS >> hiddenapi.onion (MISSING ORIGIN HEADER,
 BREAKS)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32255>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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