# Hard freeze on chrome when copying field - gridField.copyEventListener recursively calls itself
**URL:** https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829
**Category:** Technical Help
**Tags:** plugin, self-hosting
**Created:** [May 27, 2023, 3:13am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829 "2023-05-27T03:13:05Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@lucw](https://community.baserow.io/u/lucw)
#### Post date: [May 27, 2023, 3:13am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/1 "2023-05-27T03:13:05Z")
i’m trying to trackdown a frontend issue on my plugin (full source [GitHub - Language-Tools/baserow-vocabai-plugin: VocabAi - plugin for Baserow database](https://github.com/Language-Tools/baserow-vocabai-plugin))
When doing ctrl+c on a field (happens on regular text fields, not just my custom fields), chrome will freeze for around 20 seconds. It’s hard freeze and I can’t do anything, nothing in chrome is responsive.
I tracked this down to the copy logic after overriding prepareValueForCopy for my field type. As I said it seems to be happening on the “Single line text” field type, which I didn’t modify in any way. It only happens inside my plugin, doesn’t happen on [baserow.io](http://baserow.io).
What I see happening is that the **copyEventListener** method on **gridField** seems to be recursively calling itself. I captured two stack traces in chrome dev tools:
First, the regular case (starts with gridField.js:175):
Second, the problematic case, you can see copyEventListener (gridField.js:175) appears twice:
Looks like the origin of the second copyEventListener is over here: [web-frontend/modules/database/utils/clipboard.js · master · Baserow / baserow · GitLab](https://gitlab.com/baserow/baserow/-/blob/master/web-frontend/modules/database/utils/clipboard.js#L64)
further up the call stack we have this: [web-frontend/modules/database/mixins/copyPasteHelper.js · master · Baserow / baserow · GitLab](https://gitlab.com/baserow/baserow/-/blob/master/web-frontend/modules/database/mixins/copyPasteHelper.js#L66)
and it seems in my case, `navigator.clipboard` is not available, according to stackoverflow this is because i’m not running over https (during development).
So this could be a development only issue, but the alternative code when `navigator.clipboard` is not available seems to have issues. Not sure how to fix, though it seems it won’t affect production over https.
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### Author:  [@jonadeline](https://community.baserow.io/u/jonadeline)
#### Post date: [May 29, 2023, 9:26am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/2 "2023-05-29T09:26:47Z")
Hey @lucw
Have you tried to enable _Insecure origins treated as secure_ in `chrome://flags` ? You can define your origin there and it should make the `navigator.clipboard` available in dev environment.
Let me know how it goes.
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### Author:  [@lucw](https://community.baserow.io/u/lucw)
#### Post date: [May 29, 2023, 11:00pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/3 "2023-05-29T23:00:27Z")
I will try this, though my other option is to configure https in the dev enviroment. But my concern is that the second path here [web-frontend/modules/database/mixins/copyPasteHelper.js · master · Baserow / baserow · GitLab](https://gitlab.com/baserow/baserow/-/blob/master/web-frontend/modules/database/mixins/copyPasteHelper.js#L66) seems to cause freezing in chrome, seems like a bug. Does this second path work for anyone ? Maybe it should be disabled ?
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### Author:  [@marcus](https://community.baserow.io/u/marcus)
#### Post date: [May 31, 2023, 7:04pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/4 "2023-05-31T19:04:40Z")
Hey, I reported this bug few days, mayme weeks ago. If I select just one cell and try to copy (CTRL+C), them my browser freezes and the whope PC system starts to be non-responsive (the onli option is to kill the proces n Task Manager). This happens in ANY browser, not just in Chrome.
I was told that devs will focus on it an will contact me to try make some more deep inspection of it.
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### Author:  [@olgatrykush](https://community.baserow.io/u/olgatrykush)
#### Post date: [May 31, 2023, 8:07pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/5 "2023-05-31T20:07:12Z")
Hey @marcus thanks! @lucw here is the link: [Copy/Paste one single field (text type) to another one gets my PC to a hang on status](https://community.baserow.io/t/copy-paste-one-single-field-text-type-to-another-one-gets-my-pc-to-a-hang-on-status/2774).
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### Author:  [@nigel](https://community.baserow.io/u/nigel)
#### Post date: [June 6, 2023, 2:59pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/6 "2023-06-06T14:59:58Z")
Hi @lucw thanks a ton for this great find, this is exactly what is causing @marcus 's bug. Just got back from holiday but will try and get this fix in for the release next week.
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### Author:  [@marcus](https://community.baserow.io/u/marcus)
#### Post date: [June 8, 2023, 7:26am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/7 "2023-06-08T07:26:39Z")
Thanks! Waiting eagerly for this fix.
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### Author:  [@marcus](https://community.baserow.io/u/marcus)
#### Post date: [June 16, 2023, 7:02am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/8 "2023-06-16T07:02:47Z")
Looks, like it’s fixed now in the version 1.18.
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### Author:  [@lucw](https://community.baserow.io/u/lucw)
#### Post date: [June 16, 2023, 7:25am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/9 "2023-06-16T07:25:04Z")
Many thanks baserow team, will give it a try in a bit after I upgrade by plugin to 1.18
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### Author:  [@lucw](https://community.baserow.io/u/lucw)
#### Post date: [June 23, 2023, 2:22pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/10 "2023-06-23T14:22:20Z")
I can confirm this issue is fixed after migrating my plugin to 1.18
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### Author:  [@marcus](https://community.baserow.io/u/marcus)
#### Post date: [June 23, 2023, 4:33pm UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/11 "2023-06-23T16:33:51Z")
what plugin are you talking about?
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### Author:  [@lucw](https://community.baserow.io/u/lucw)
#### Post date: [June 24, 2023, 5:01am UTC](https://community.baserow.io/t/hard-freeze-on-chrome-when-copying-field-gridfield-copyeventlistener-recursively-calls-itself/2829/12 "2023-06-24T05:01:45Z")
Baserow allows you to develop extensions to the platform using the plugin system. You have to pick a baserow version when you develop such a plugin, which is one of the wonderful aspects, as baserow fixes bugs, my plugin will benefit from those.