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From "Alexander Shorin (JIRA)" <>
Subject [jira] [Commented] (COUCHDB-2444) Mirror CORS domains
Date Thu, 06 Nov 2014 23:22:34 GMT


Alexander Shorin commented on COUCHDB-2444:

How does it different from the allowing (and violating the specification) authentication with
wildcard origins?

> Mirror CORS domains
> -------------------
>                 Key: COUCHDB-2444
>                 URL:
>             Project: CouchDB
>          Issue Type: Improvement
>      Security Level: public(Regular issues) 
>          Components: HTTP Interface
>            Reporter: Zachary Lym
> Most APIs that support CORS specify acceptable domains not with a wildcard but by mirroring
the caller.  I believe that this is an XSS mitigation technique but it would also allow cookie-based
authentication on domains (which are blocked when a wildcard is used to specify the domains).
> If this capability exists, then it should be documented it in interface highlighted in
the CORS documentation.
> [PouchDB cross-pollination|].

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