better error handlig of shared data

server/scripts/modules/currentweather.mjs

@@ -55,7 +55,9 @@ class CurrentWeather extends WeatherDisplay {
 		// test for data received
 		if (!observations) {
 			console.error('All current weather stations exhausted');
-			this.setStatus(STATUS.failed);
+			if (this.enabled) this.setStatus(STATUS.failed);
+			// send failed to subscribers
+			this.getDataCallback(undefined);
 			return;
 		}
 		// preload the icon

server/scripts/modules/hourly-graph.mjs

@@ -28,6 +28,10 @@ class HourlyGraph extends WeatherDisplay {
 		if (!super.getData()) return;
 
 		const data = await getHourlyData();
+		if (data === undefined) {
+			this.setStatus(STATUS.failed);
+			return;
+		}
 
 		// get interesting data
 		const temperature = data.map((d) => d.temperature);

server/scripts/modules/hourly.mjs

@@ -37,12 +37,13 @@ class Hourly extends WeatherDisplay {
 		} catch (e) {
 			console.error('Get hourly forecast failed');
 			console.error(e.status, e.responseJSON);
-			this.setStatus(STATUS.failed);
+			if (this.enabled) this.setStatus(STATUS.failed);
+			// return undefined to other subscribers
+			this.getDataCallback(undefined);
 			return;
 		}
 
 		this.data = await Hourly.parseForecast(forecast.properties);
-
 		this.getDataCallback();
 		if (!superResponse) return;