* Specific HTTP headers or all of them with the wildcard `"*"`.

{* ../../docs_src/cors/tutorial001.py hl[2,6:11,13:19] *}


The default parameters used by the `CORSMiddleware` implementation are restrictive by default, so you'll need to explicitly enable particular origins, methods, or headers, in order for browsers to be permitted to use them in a Cross-Domain context.

The following arguments are supported:

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