Copilot commented on code in PR #38644:
URL: https://github.com/apache/superset/pull/38644#discussion_r2935491248
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superset-frontend/src/theme/ThemeController.ts:
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@@ -743,6 +747,9 @@ export class ThemeController {
return ThemeMode.DEFAULT;
}
+ // Use explicit initial mode if provided (e.g. embedded dashboards default
to light)
+ if (this.initialMode !== undefined) return this.initialMode;
Review Comment:
`determineInitialMode()` returns `this.initialMode` without validating it.
Since `ThemeController` can be constructed from plain JS (or with data coming
from JSON), `initialMode` could be `null` or an unexpected string at runtime,
which would set `currentMode` to an invalid value and persist it. Consider
guarding with a null-check and `isValidThemeMode(...)` (and falling back to
`ThemeMode.SYSTEM`/`DEFAULT` when invalid).
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