# \#client-addon

**URL:** https://community.auth0.com/tag/client-addon/1053.md

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## [Access-Control-Allow-Origin when activate Addon in Client](https://community.auth0.com/t/access-control-allow-origin-when-activate-addon-in-client/9109)

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**Author:** [@jacobo.paramo](https://community.auth0.com/u/jacobo.paramo)\
**Replies:** 1\
**Last updated:** [January 2, 2018, 10:38pm UTC](https://community.auth0.com/t/access-control-allow-origin-when-activate-addon-in-client/9109 "2018-01-02T22:38:39Z")

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When I try to acivate SAML2 addon in a Regular Web Application Client, I get this error Failed to load https://contar.au.auth0.com/fingerprint: No ‘Access-Control-Allow-Origin’ header is present on the requested resourc…

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## [2 SAML2 client addons in same client?](https://community.auth0.com/t/2-saml2-client-addons-in-same-client/8696)

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**Author:** [@joshuarpowell](https://community.auth0.com/u/joshuarpowell)\
**Replies:** 2\
**Last updated:** [November 21, 2017, 10:59am UTC](https://community.auth0.com/t/2-saml2-client-addons-in-same-client/8696 "2017-11-21T10:59:51Z")

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Our App has multiple 3rd party SSOs requiring SAML2. These SSOs are accessed through url links. We have one configured. However, it doesn’t appear that we can add a second custom SAML2 addon to the same client. Is th…