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Power Platform Community / Forums / Power Automate / CORS MISSING ALLOW ORI...
Power Automate
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CORS MISSING ALLOW ORIGIN error

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i am trying to get the access_token dynamically from frontend using react js for the API

"**GET https://login.microsoftonline.com/TenantID/oauth2/v2.0/token**"

by giving body parameters as

client_id:

client_secret:

scope:

grant_type:

redirect_uri:

But i am getting CORS MISSING ALLOW ORIGIN error .
How can i solve it ?

Is there any option to enable cors origin from react js ?

Give me the solution

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I have the same question (0)
  • Chriddle Profile Picture
    Chriddle 8,436 Super User 2025 Season 2 on at

    No, the CORS header (Allow-Origin) would have to be set on the Microsoft server.

    I'm assuming they won't do that for you 😉

  • Chriddle Profile Picture
    Chriddle 8,436 Super User 2025 Season 2 on at

    Of course, there are ways to get around CORS, such as using a proxy that doesn't care or launching Chrome like this:

    chrome.exe --user-data-dir="C://chrome-dev-disabled-security" --disable-web-security

    But CORS is a security feature, make sure you know what you're doing.

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