Standardizing the approach would definitely help developers,  
however where will we communicate this?

On February 5, 2015 at 3:04:35 PM, Takeshi Yoshino ( wrote:

On Thu, Feb 5, 2015 at 10:57 PM, Anne van Kesteren <> wrote:
On Thu, Feb 5, 2015 at 2:48 PM, Bjoern Hoehrmann <> wrote:
> A Websocket connection is established by making a HTTP Upgrade request,
> and the protocol is HTTP unless and until the connection is upgraded.

Sure, but the server can get away with supporting a very limited
subset of HTTP, no? Anyway, perhaps a combination of a CORS preflight
followed by the HTTP Upgrade that then includes the headers is the
answer, would probably be best to ask some WebSocket library
developers what they think.

Agreed. Even if we don't make any change on the existing specs, we need to 
standardize (or just announce to developers) that they need to make servers 
understand that combination if they want to develop apps that uses custom 
headers. Then, client vendors could implement that.

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