log errors from event listeners

src/services/Chromecast/Chromecast.js

@@ -5,6 +5,10 @@ const ChromecastTransport = require('./ChromecastTransport');
 
 let castAPIAvailable = null;
 const castAPIEvents = new EventEmitter();
+castAPIEvents.on('error', (error) => {
+    /* eslint-disable-next-line no-console */
+    console.error(error);
+});
 window['__onGCastApiAvailable'] = function(available) {
     delete window['__onGCastApiAvailable'];
     castAPIAvailable = available;
@@ -18,7 +22,10 @@ function Chromecast() {
     let transport = null;
 
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     function onCastAPIAvailabilityChanged() {
         if (castAPIAvailable) {

src/services/Chromecast/ChromecastTransport.js

@@ -6,7 +6,10 @@ const MESSAGE_NAMESPACE = 'urn:x-cast:com.stremio';
 
 function ChromecastTransport() {
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     cast.framework.CastContext.getInstance().addEventListener(
         cast.framework.CastContextEventType.CAST_STATE_CHANGED,

src/services/Core/Core.js

@@ -6,12 +6,18 @@ const CoreTransport = require('./CoreTransport');
 
 let coreAPIAvailable = null;
 const coreAPIEvents = new EventEmitter();
+coreAPIEvents.on('error', (error) => {
+    /* eslint-disable-next-line no-console */
+    console.error(error);
+});
 initializeCoreAPI()
     .then(() => {
         coreAPIAvailable = true;
         coreAPIEvents.emit('availabilityChanged');
     })
-    .catch(() => {
+    .catch((error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
         coreAPIAvailable = false;
         coreAPIEvents.emit('availabilityChanged');
     });
@@ -23,7 +29,10 @@ function Core() {
     let transport = null;
 
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     function onCoreAPIAvailabilityChanged() {
         if (coreAPIAvailable) {

src/services/Core/CoreTransport.js

@@ -5,7 +5,10 @@ const { StremioCoreWeb } = require('@stremio/stremio-core-web');
 
 function CoreTransport() {
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     const core = new StremioCoreWeb(({ name, args }) => {
         try {

src/services/KeyboardShortcuts/KeyboardShortcuts.js

@@ -6,7 +6,10 @@ function KeyboardShortcuts() {
     let active = false;
 
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     function onKeyDown(event) {
         if (event.keyboardShortcutPrevented || event.target.tagName === 'INPUT') {

src/services/Shell/Shell.js

@@ -8,7 +8,10 @@ function Shell() {
     let starting = false;
 
     const events = new EventEmitter();
-    events.on('error', () => { });
+    events.on('error', (error) => {
+        /* eslint-disable-next-line no-console */
+        console.error(error);
+    });
 
     function onStateChanged() {
         events.emit('stateChanged');