Catch ADSB timeouts

server/src/adsb.mjs

@@ -33,6 +33,12 @@ setInterval(() => {
 	}
 }, 1000 * 60 * 5);
 
+function fetchWithTimeout(url, ms = 5000) {
+	const controller = new AbortController();
+	const id = setTimeout(() => controller.abort(), ms);
+	return fetch(url, { signal: controller.signal }).finally(() => clearTimeout(id));
+}
+
 async function syncMilitaryRanges() {
 	const { ADSB_URL } = cfg();
 	try {
@@ -194,7 +200,7 @@ export async function enrichAircraft(a) {
 export async function getADSB() {
 	const { ADSB_URL } = cfg();
 	if (!ADSB_URL) return [];
-	const r = await fetch(`${ADSB_URL}:8080/data/aircraft.json`);
+	const r = await fetchWithTimeout(`${ADSB_URL}:8080/data/aircraft.json`);
 	const j = await r.json();
 	const aircraft = j.aircraft || [];