Handle Edge Cases

Task

Check common failure and empty states before release.

File / section

src/App.jsx, Forecast.jsx, browser

Change

Verify missing API key, invalid API key, unknown city, empty search, unsupported geolocation, denied geolocation, and empty forecast handling.

Why this change matters

These cases are already represented by the error/loading guards; this lesson confirms they remain intact after all integrations.

Test it

No tested edge case produces an uncaught runtime error or a permanently stuck loader.

Checkpoint

WeatherNow handles the major expected failure paths.