bughelp wanted
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説明
Expected behavior:
<style> elements get disposed when re-rendering in StrictMode.
Describe the bug:
When using themed styles (possibly prop-based as well) re-rendering a component using useStyles with a new theme will leak their <style> elements.
This is possibly due to useStyles managing the sheet during render but unmanaging it in a effect cleanup. A component can render multiple times (in concurrent and strict mode) before an effect is scheduled.
Codesandbox link: https://codesandbox.io/s/determined-wood-8d0s7?file=/src/App.js:513-622
Click "rerender" and see that the number of <style> element grows with every "rerender" click.
Versions (please complete the following information):
- react-jss: 10.1.1
- Browser [e.g. chrome, safari]: Chrome 81
- OS [e.g. Windows, macOS]: Ubuntu 18.04
- react: 16.13.1