fix(log): fetching error (#59)

Author: alexist

app/services/karma-host-resolver.ts

@@ -7,19 +7,22 @@ export class KarmaHostResolver implements IKarmaHostResolver {
 
             const resolvers = ips.map(ip => {
                 const karmaClientUrl = `http://${ip}:${port}/context.json`;
-                console.log('NSUTR: fetching ' + karmaClientUrl);
+                console.log(`NSUTR: fetching ${karmaClientUrl}`);
 
                 return this.http.getString({
                     url: karmaClientUrl,
                     method: 'GET',
                     timeout: 3000,
                 }).then(() => {
-                    console.log('NSUTR: found karma at ' + ip);
+                    console.log(`NSUTR: found karma at ${ip}`);
                     if (!foundKarma) {
                         foundKarma = true;
                         resolve(ip);
                     }
-                }, () => undefined)
+                }, (err) => {
+                    console.log(`NSUTR: error fetching ${karmaClientUrl}`, err);
+                    return undefined;
+                })
             });
 
             Promise.all(resolvers)