# No undo button on collab

**URL:** https://discuss.prosemirror.net/t/no-undo-button-on-collab/598
**Category:** Uncategorized
**Created:** [January 26, 2017, 11:14pm UTC](https://discuss.prosemirror.net/t/no-undo-button-on-collab/598 "2017-01-26T23:14:57Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![kofifus](https://discuss.prosemirror.net/user_avatar/discuss.prosemirror.net/kofifus/32/288_2.png) [@kofifus](https://discuss.prosemirror.net/u/kofifus)
#### Post date: [January 26, 2017, 11:14pm UTC](https://discuss.prosemirror.net/t/no-undo-button-on-collab/598/1 "2017-01-26T23:14:57Z")

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The demo has an undo button in the editor toolbar whereas it’s missing in my local build. why would that be ?

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### Author: ![kofifus](https://discuss.prosemirror.net/user_avatar/discuss.prosemirror.net/kofifus/32/288_2.png) [@kofifus](https://discuss.prosemirror.net/u/kofifus)
#### Post date: [January 27, 2017, 12:24am UTC](https://discuss.prosemirror.net/t/no-undo-button-on-collab/598/2 "2017-01-27T00:24:02Z")

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sorry … working now

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### Author: ![marijn](https://discuss.prosemirror.net/user_avatar/discuss.prosemirror.net/marijn/32/15_2.png) [@marijn](https://discuss.prosemirror.net/u/marijn)
#### Post date: [January 27, 2017, 10:08pm UTC](https://discuss.prosemirror.net/t/no-undo-button-on-collab/598/3 "2017-01-27T22:08:45Z")

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The code in the bundle is compiled down to ES5 (with Bublé, not Babel), so yeah, it’ll look a bit different.