I followed SPA + Vanilla https://auth0.com/docs/package/v2?repo=auth0-javascript-samples&branch=master&path=01-Login When I started my brand new account I selected SPA + Vanilla also. After sign in page and when it redirects back to my website the POST + Pre-flight only gets 401 Unauthorized. I f…

Hey. Thanks for reaching out. SPA supports only PKCE and hence token exchange with confidential clients in backend are not supported. Hence you were getting 401 error while trying to obtain token. Node.js is being considered as backend in your case. You can only use that if you need to validate to…

I don’t think you understand. How your service works today; A brand new customer signs up on auto0.com for an account and selects to use SPA (client-side JavaScript). He/she gets default settings that will NOT work for client-side js. So it’s a bug. I wrote the steps needed to get around it above ho…

Yes it’s very similar at least

Regression of 401/Unauthorized when obtaining token in Authorization Code grant

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gauthamsv5 January 17, 2024, 1:52am 4

Hi, Thanks for clearing that up.

Are you referring to this old bug?

Thanks,
Gautham

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Regression of 401/Unauthorized when obtaining token in Authorization Code grant

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