2.1.11 Section 7.1.2, Cross-Origin Request Status

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V0011

The specification states:

 Each cross-origin request has an associated cross-origin request status that CORS API specifications that enable an API to make cross-origin requests can hook into. It can take at most two distinct values over the course of a cross-origin request. The values are:
  
preflight complete

The user agent is about to make the actual request.

 
success

The resource can be shared.

 
abort error

The user aborted the request.

 
network error

The resource cannot be shared. Also used when a DNS error, TLS negotiation failure, or other type of network error occurs. This does not include HTTP responses that indicate some type of error, such as HTTP status code 410.

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Preflight is not supported.