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actix_cors is always returing 404 on OPTIONS requests #580

@alvarosan

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@alvarosan

Disclaimer: I have looked around for a solution for this and I could not find anyone else having this problem so I might be missing something fundamental.

I could make actix_cors work in my server (actix_web = "4.2.1" , actix_cors = "0.6.2"). No errors are thrown at runtime when starting the application but whenever I make an OPTIONS request to a registered endpoint I keep getting a 404 response.

After several attempts to fix this, I found your reference application (examples/cors) and unfortunately I could also reproduce the problem there. It is unclear what is happening (I could reproduce it both in the browser and with postman). Here are some screenshots:

Working POST request:

Screenshot from 2022-11-08 11-02-52

Failing OPTIONS request:
Screenshot from 2022-11-08 11-03-14

Let me know if you need more info, thanks.

Alvaro

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