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Code Issues 775 Packages Projects Releases 10 Wiki Activity

Window resize leak? #18536

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opened 2026-02-21 19:48:53 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 19:48:53 -05:00
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Originally created by @DavideDelbianco on GitHub (Sep 29, 2025).

Originally assigned to: @crazywoola on GitHub.

Self Checks

  • I have read the Contributing Guide and Language Policy.
  • This is only for bug report, if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report, otherwise it will be closed.
  • 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：）
  • Please do not modify this template :) and fill in all the required fields.

Dify version

1.9.0

Cloud or Self Hosted

Cloud

Steps to reproduce

I may be wrong (in case close the issue)
Isn't debounce by lodash-es returning a new function?

In base/chat/chat/index.tsx component, the code:

useEffect(() => {
    window.addEventListener('resize', debounce(handleWindowResize))
    return () => window.removeEventListener('resize', handleWindowResize)
  }, [handleWindowResize])

I suspect the removeEventListener is not really removing handleWindowResize, because what was attached was debounce(handleWindowResize)

✔️ Expected Behavior

removeEventListener should remove the same function that was attached with addEventListener

❌ Actual Behavior

it is not

Originally created by @DavideDelbianco on GitHub (Sep 29, 2025). Originally assigned to: @crazywoola on GitHub. ### Self Checks - [x] I have read the [Contributing Guide](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) and [Language Policy](https://github.com/langgenius/dify/issues/1542). - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report, otherwise it will be closed. - [x] 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：） - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version 1.9.0 ### Cloud or Self Hosted Cloud ### Steps to reproduce I may be wrong (in case close the issue) Isn't `debounce` by lodash-es returning a new function? In base/chat/chat/index.tsx component, the code: ```ts useEffect(() => { window.addEventListener('resize', debounce(handleWindowResize)) return () => window.removeEventListener('resize', handleWindowResize) }, [handleWindowResize]) ``` I suspect the removeEventListener is not really removing `handleWindowResize`, because what was attached was `debounce(handleWindowResize)` ### ✔️ Expected Behavior removeEventListener should remove the same function that was attached with addEventListener ### ❌ Actual Behavior it is not
yindo added the 🐞 bug label 2026-02-21 19:48:53 -05:00
yindo closed this issue 2026-02-21 19:48:53 -05:00
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Reference: langgenius/dify#18536
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