# TypeError: \_a.toLowerCase is not a function

**URL:** <https://forum.kee.pm/t/typeerror-a-tolowercase-is-not-a-function/3505>\
**Category:** Kee browser extension\
**Created:** [February 4, 2021, 1:36pm UTC](https://forum.kee.pm/t/typeerror-a-tolowercase-is-not-a-function/3505 "2021-02-04T13:36:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![brainz80](https://forum.kee.pm/user_avatar/forum.kee.pm/brainz80/32/1253_2.png) [@brainz80](https://forum.kee.pm/u/brainz80)\
**Post date:** [February 4, 2021, 1:36pm UTC](https://forum.kee.pm/t/typeerror-a-tolowercase-is-not-a-function/3505/1 "2021-02-04T13:36:15Z")

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I keep getting the below error:

 ![image](https://forum.kee.pm/uploads/default/original/2X/1/148c8dab7918fee879fa45f9b3e076f91843718f.png)

over and over again (once a fraction of a second) on any page I visit when Kee extension is enabled.

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<div class="post-metadata">

**Author:** ![luckyrat](https://forum.kee.pm/user_avatar/forum.kee.pm/luckyrat/32/10_2.png) [@luckyrat](https://forum.kee.pm/u/luckyrat)\
**Post date:** [February 4, 2021, 4:27pm UTC](https://forum.kee.pm/t/typeerror-a-tolowercase-is-not-a-function/3505/2 "2021-02-04T16:27:57Z")

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“Any page” sounds a little strange. Perhaps you have another extension which is modifying every form in every page?

In any case, I expect the issue will be resolved soon. See [Kee browser extension bug - using form.name rather than form.getAttribute(‘name’)](https://forum.kee.pm/t/kee-browser-extension-bug-using-form-name-rather-than-form-getattribute-name/3503)