Display more information about remote event crashes.

If possible, we'll dig into the function args and print the ones that are attached remotely.

lib/browser/rpc-server.js

@@ -146,6 +146,28 @@ const throwRPCError = function (message) {
   throw error
 }
 
+const rendererMissingErrorMessage = function (meta, args, callIntoRenderer) {
+  let message = `Attempting to call a function in a renderer window that has been closed or released.` +
+    `Function provided here: ${meta.location}.`;
+
+  if (!args || args.length === 0) return message;
+  if (!args[0].sender || !args[0].sender._events) return message;
+
+  const eventsAttached = args[0].sender._events;
+  const remoteEvents = Object.keys(eventsAttached).filter((eventName) => {
+    return Array.isArray(eventsAttached[eventName]) ?
+      eventsAttached[eventName].includes(callIntoRenderer) :
+      eventsAttached[eventName] === callIntoRenderer
+  });
+
+  if (remoteEvents && remoteEvents.length > 0) {
+    message += `\nRemote event names:`
+    remoteEvents.forEach((eventName) => message += ` ${eventName} `);
+  }
+
+  return message;
+}
+
 // Convert array of meta data from renderer into array of real values.
 const unwrapArgs = function (sender, args) {
   const metaToValue = function (meta) {
@@ -196,7 +218,7 @@ const unwrapArgs = function (sender, args) {
           if (!sender.isDestroyed() && webContentsId === sender.getId()) {
             sender.send('ELECTRON_RENDERER_CALLBACK', meta.id, valueToMeta(sender, args))
           } else {
-            throw new Error(`Attempting to call a function in a renderer window that has been closed or released. Function provided here: ${meta.location}.`)
+            throw new Error(rendererMissingErrorMessage(meta, args, callIntoRenderer));
           }
         }