# Harmful js found in mautic emails?

**URL:** <https://forum.mautic.org/t/harmful-js-found-in-mautic-emails/16476>\
**Category:** Product Support\
**Created:** [October 7, 2020, 5:13am UTC](https://forum.mautic.org/t/harmful-js-found-in-mautic-emails/16476 "2020-10-07T05:13:16Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![EJL](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/ejl/32/12155_2.png) [@EJL](https://forum.mautic.org/u/EJL)\
**Post date:** [October 7, 2020, 3:02pm UTC](https://forum.mautic.org/t/harmful-js-found-in-mautic-emails/16476/15 "2020-10-07T15:02:31Z")

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@rotorfido You should change the post title to something more accurate. It is absolutely spurious. I could make some suggestions as to more accurate post titles but many of the community guidelines would be broken as to obscenity and respectful conduct.

A quick examination of your [mail-tester.com](http://mail-tester.com) link

[https://www.mail-tester.com/test-mq9qa8imx](https://www.mail-tester.com/test-mq9qa8imx)

And 2 minutes on Google provided the answer

> It doesn’t appear to be _dangerous_ per se, but it allows a particularly formatted message from the `postMessage` API to cause the `navigator.geolocation` API to output garbage, if enabled, probably as part of an extension you’ve installed to browse “anonymously”.

And

> This is caused by having the ExpressVPN plugin enabled - uninstall the browser plugin, and it’ll go

> <https://stackoverflow.com/questions/49017654/strange-js-script-in-devtools>

It appears to be a browser extension you use is causing this and probably most of the rest of the problems you have been having that you [posted about](https://forum.mautic.org/t/do-focus-items-work-users-complain/16473)

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