# خطأ غير صالح في nonce

**URL:** <https://meta.discourse.org/t/invalid-nonce-error/83264>\
**Category:** SSO\
**Created:** [19 مارس 2018، 12:56ص UTC](https://meta.discourse.org/t/invalid-nonce-error/83264 "2018-03-19T00:56:44Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![shahidmir](https://avatars.discourse-cdn.com/v4/letter/s/9dc877/32.png) [@shahidmir](https://meta.discourse.org/u/shahidmir)\
**Post date:** [19 مارس 2018، 10:28ص UTC](https://meta.discourse.org/t/invalid-nonce-error/83264/5 "2018-03-19T10:28:12Z")

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🙂 thanks.  
Though you say easy, Im still failing to bring the pieces together, so would like to bother you once again.

**_When a user is logged in on the website, the URL that link to the forum site should be set to `fourm.example.com/session/sso` . Then when a user click this URL to visit forum, he will be logged in to Discourse automatically._**

With the current config setup as suggested, the sso\_url points to Auth0 and invoking /session/sso brings up the Auth0 login box each time, even for a logged in user?

Also, cant work out what params need to be sent to /session/sso URL?

Regards

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