# Cookies issue

**URL:** <https://forum.mautic.org/t/cookies-issue/17394>\
**Category:** Development\
**Tags:** mautic-3, development, discussion, community\
**Created:** [December 14, 2020, 4:10am UTC](https://forum.mautic.org/t/cookies-issue/17394 "2020-12-14T04:10:55Z")\
**Posts on this page:** 7\
**Page:** 2

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**Author:** ![vicampuzano](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/vicampuzano/32/2820_2.png) [@vicampuzano](https://forum.mautic.org/u/vicampuzano)\
**Post date:** [January 13, 2021, 7:09am UTC](https://forum.mautic.org/t/cookies-issue/17394/22 "2021-01-13T07:09:24Z")

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Ah!!! And one more thing:

You also have to delete the same in localStorage. Ex localStorage.deleteItem(“mtc\_id”)

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**Author:** ![mohitp](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/mohitp/32/543_2.png) [@mohitp](https://forum.mautic.org/u/mohitp)\
**Post date:** [January 13, 2021, 7:39am UTC](https://forum.mautic.org/t/cookies-issue/17394/23 "2021-01-13T07:39:50Z")

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Hi @vicampuzano

Thanks for sharing your solution.  
But is there any other way for achieving this without editing the mautic code.  
Like can we do it with clearing the mautic cookies or local storage data from client browser programmatically ?  
I tried that but not didn’t make it work.  
Any thoughts on this approach ?

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**Author:** ![namratasaun](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/namratasaun/32/2801_2.png) [@namratasaun](https://forum.mautic.org/u/namratasaun)\
**Post date:** [January 13, 2021, 10:46am UTC](https://forum.mautic.org/t/cookies-issue/17394/24 "2021-01-13T10:46:44Z")

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it won’t be possible to achieve it through client browser as the cookie is set by out mautic instance. So not possible to delete using client side javascript. I tried. It was deleteing other cookies, but not the ones set by mautic (where source is your mautic domain)

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**Author:** ![namratasaun](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/namratasaun/32/2801_2.png) [@namratasaun](https://forum.mautic.org/u/namratasaun)\
**Post date:** [January 13, 2021, 1:26pm UTC](https://forum.mautic.org/t/cookies-issue/17394/25 "2021-01-13T13:26:24Z")

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oh my god!  
Thank a lot for your help. will try this and update you. But this seems it will work.  
Thanks a lot again.  
Also, are you a developer in Mautic?  
or just god 😛

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**Author:** ![namratasaun](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/namratasaun/32/2801_2.png) [@namratasaun](https://forum.mautic.org/u/namratasaun)\
**Post date:** [January 13, 2021, 1:26pm UTC](https://forum.mautic.org/t/cookies-issue/17394/26 "2021-01-13T13:26:47Z")

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yes, this I was doing earlier too. thank you again

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<div class="post-metadata">

**Author:** ![vicampuzano](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/vicampuzano/32/2820_2.png) [@vicampuzano](https://forum.mautic.org/u/vicampuzano)\
**Post date:** [January 14, 2021, 6:25am UTC](https://forum.mautic.org/t/cookies-issue/17394/27 "2021-01-14T06:25:52Z")

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Jajaja. Nooope, just a lucky and stubborn guy 😂

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**Author:** ![dirk\_s](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/dirk_s/32/748_2.png) [@dirk\_s](https://forum.mautic.org/u/dirk_s)\
**Post date:** [December 12, 2022, 10:14am UTC](https://forum.mautic.org/t/cookies-issue/17394/28 "2022-12-12T10:14:18Z")

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Sorry, just came to this thread. From my view, the main mistake is to create contacts by using a “pageview” event! Of course, all those contacts will be overwritten, if it comes from the same source.

Don’t use pageview events for creating new users.

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