# \#code-verifier

**URL:** https://community.auth0.com/tag/code-verifier/450.md

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## [Failures on code\_verifier after upgrading our File Maker server](https://community.auth0.com/t/failures-on-code-verifier-after-upgrading-our-file-maker-server/203456)

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**Author:** [@mike.birkhead](https://community.auth0.com/u/mike.birkhead)\
**Replies:** 1\
**Last updated:** [September 21, 2026, 6:12pm UTC](https://community.auth0.com/t/failures-on-code-verifier-after-upgrading-our-file-maker-server/203456 "2026-09-21T18:12:33Z")

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getting failures on code\_verifier after upgrading our File Maker server. Requiring end user to to do multiple attempts and then it is successful. This seems to be intermittent. I checked the community https://community…

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## [RFC 7636 violation - Weak enforcement of PKCE parameters in OAuth 2.0 implementation](https://community.auth0.com/t/rfc-7636-violation-weak-enforcement-of-pkce-parameters-in-oauth-2-0-implementation/187016)

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**Author:** [@manish.singh](https://community.auth0.com/u/manish.singh)\
**Replies:** 2\
**Last updated:** [July 15, 2025, 8:54am UTC](https://community.auth0.com/t/rfc-7636-violation-weak-enforcement-of-pkce-parameters-in-oauth-2-0-implementation/187016 "2025-07-15T08:54:28Z")

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Feature: Strict enforcement of PKCE parameters in OAuth 2.0 implementation Description: PKCE ( Proof Key for Code Exchange) was introduced as an extension to OAuth 2.0 to mitigate risk of authorization code interception…

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## [How to get code and code verifier in java objects?](https://community.auth0.com/t/how-to-get-code-and-code-verifier-in-java-objects/20501)

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**Author:** [@Naofilms](https://community.auth0.com/u/Naofilms)\
**Replies:** 3\
**Last updated:** [January 28, 2019, 5:48pm UTC](https://community.auth0.com/t/how-to-get-code-and-code-verifier-in-java-objects/20501 "2019-01-28T17:48:26Z")

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After successful login from social account i.e google, i get following result in console. D/OkHttp: {“code”:“jG-asd3df”,“redirect\_uri”: “adasd”, “code\_verifier”:“asdae3fd”} Is there any way possible i can get these f…

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## [Passwordless Connection is not sending emails](https://community.auth0.com/t/passwordless-connection-is-not-sending-emails/6547)

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**Author:** [@babar.ali](https://community.auth0.com/u/babar.ali)\
**Replies:** 2\
**Last updated:** [May 9, 2017, 7:46pm UTC](https://community.auth0.com/t/passwordless-connection-is-not-sending-emails/6547 "2017-05-09T19:46:49Z")

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We have configured email on passwordless connection and it was working up til morning. We are using sendgrid to send emails but that is working since welcome emails are coming though. Only the code being sent through pa…