[wp-trac] [WordPress Trac] #45477: Disable REST API reflection of request Origin header in response Access-Control-Allow-Origin

[WordPress Trac]

#45477: Disable REST API reflection of request Origin header in response Access-
Control-Allow-Origin
-----------------------------------+------------------------------
 Reporter:  BjornW                 |       Owner:  (none)
     Type:  defect (bug)           |      Status:  new
 Priority:  normal                 |   Milestone:  Awaiting Review
Component:  REST API               |     Version:
 Severity:  normal                 |  Resolution:
 Keywords:  has-patch 2nd-opinion  |     Focuses:
-----------------------------------+------------------------------
Changes (by BjornW):

 * keywords:   => has-patch 2nd-opinion


Comment:

 This [https://core.trac.wordpress.org/attachment/ticket/45477/45477.2.diff
 patch] uses the Allow Origin API to check if an incoming Origin URL is
 part of the allowed Origins safe-list. By default, the only Origin URLs
 allowed are the current host (both http and https).

 Adding an Origin to the safe-list can be done using the
 [https://core.trac.wordpress.org/browser/trunk/src/wp-
 includes/http.php#L449 'allowed_http_origins' filter].

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Ticket URL: <https://core.trac.wordpress.org/ticket/45477#comment:1>
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