# Error when trying to view an email from a user's preference page

**URL:** <https://meta.discourse.org/t/error-when-trying-to-view-an-email-from-a-users-preference-page/26724>\
**Category:** Bug\
**Created:** [March 24, 2015, 10:24pm UTC](https://meta.discourse.org/t/error-when-trying-to-view-an-email-from-a-users-preference-page/26724 "2015-03-24T22:24:59Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![zogstrip](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/zogstrip/32/512781_2.png) [@zogstrip](https://meta.discourse.org/u/zogstrip)\
**Post date:** [March 25, 2015, 9:04am UTC](https://meta.discourse.org/t/error-when-trying-to-view-an-email-from-a-users-preference-page/26724/10 "2015-03-25T09:04:32Z")

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> Window Location: [FQDN]/users/[any-user]/preferences?undefined-renamed=&undefined-renamed=&undefined-renamed=&undefined-renamed=

I had a similar error last week when I refactored a `<button>` to a `{{d-button}}` in the user’s preference template. Here’s what I did to fix it:

> <https://github.com/discourse/discourse/blob/11bf7da63cbbd5ebcb0066f2774577cabf806550/app/assets/javascripts/discourse/components/d-button.js.es6#L35>

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