OAuth and Dropbox api

Question

I'm trying to use the API dropbox.

Once the authentication window is opened, a message is displayed:

This session has expired. Please return to the app to try again.

See full image

I'm using a library to work with OAuth called jsOAuth

Console Error

See full image

I published this application: Here the full code

Notes

• I know that is not very safe to use OAuth with Javascript, but this is only for studying the OAuth standard.
• See here the complete JS
• Any example of using javascript with OAuth will help me a lot

Thank you all for your help!

Answer 1

That error message means the request token used for that authentication session is no longer valid, likely because a timeout has passed. (The request token is only good for a certain amount of time.) You need to start over with a new request token.