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When supports_credentials is True, the server cannot return Access-Control-Allow-Origin: * . It must echo back the specific requester's origin. flask-cors handles this automatically if you provide a list or a regex, but it won't work with a literal * string in some browser implementations.

When supports_credentials is True, the server cannot return `Access-Control-Allow-Origin: *` . It must echo back the specific requester's origin. `flask-cors` handles this automatically if you provide a list or a regex, but it won't work with a literal `*` string in some browser implementations.
@adamoutler adamoutler force-pushed the patch-9 branch 2 times, most recently from f0eab60 to 09fc1f3 Compare January 17, 2026 22:44
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