- From: Adam Barth <w3c@adambarth.com>
- Date: Tue, 12 Jan 2010 12:58:01 -0800
- To: public-webapps <public-webapps@w3.org>
- Cc: Tyler Close <tyler.close@gmail.com>
[Resending from the correct address.] > In the current draft of UMP, the client can opt-in to UMP by choosing > to use the UniformMessaging API, but the server is unable to force > clients to use UMP because the way the server opts into the protocol > is by returning the Access-Control-Allow-Origin header. > Unfortunately, when the server returns the Access-Control-Allow-Origin > header, the server also opts into the CORS and XDomainRequest > protocols. The server operator might be reticent to opt into these > protocols if he or she is worried about ambient authority. > > I recommend using a new header, like "Allow-Uniform-Messages: level-1" > so that servers can opt into UMP specifically. > > Adam >
Received on Tuesday, 12 January 2010 20:58:54 UTC