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fix: Clean up custom css when dashboard unmounted #19342

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9 changes: 9 additions & 0 deletions superset-frontend/src/dashboard/containers/DashboardPage.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -237,6 +237,15 @@ const DashboardPage: FC = () => {
return () => {};
}, [css]);

useEffect(
() => () => {
// need to clean up custom css
// when dashboard unmounts
injectCustomCss('');
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Looking at line 235, it seems like the function injectCustomCss was designed to handle the cleanup (or that was the intention).
I would recommend reviewing that function and finding out why is it not working.
The useEffect from above should be sufficient then.

},
[],
);

useEffect(
() => () => {
// clean up label color
Expand Down