2.1.2 [CORS], Section 7.1.7, Generic Cross-Origin Request Algorithms

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V0002:

The specification states:

Whenever the make a request steps are applied, fetch the request URL from origin source origin using referrer source as override referrer source with the manual redirect flag set, and the block cookies flag set if the omit credentials flag is set.

IE10 Mode (all versions)

The override referrer source is not supported.