Hide dock icon, handle errors occurring on mac

src/main.ts

@@ -186,6 +186,14 @@ export class Main {
 
 console.error(process.argv);
 if (process.argv.some(arg => arg.indexOf('chrome-extension://') !== -1 || arg.indexOf('{') !== -1)) {
+    app.on('ready', () => {
+        app.dock.hide();
+    });
+    process.stdout.on('error', (e) => {
+        if (e.code === 'EPIPE') {
+            process.exit(0);
+        }
+    });
     const proxy = new NativeMessagingProxy();
     proxy.run();
 } else {

src/proxy/nativemessage.ts

@@ -45,7 +45,12 @@ export default class NativeMessage {
             // The next time we'll need to read the payload size is when all of the data
             // of the current payload has been read (ie. data.length >= payloadSize + 4)
             if (!sizeHasBeenRead()) {
-                payloadSize = stringData.readUInt32LE(0);
+                try {
+                    payloadSize = stringData.readUInt32LE(0);
+                } catch (e) {
+                    console.error(e);
+                    return;
+                }
             }
 
             // If the data we have read so far is >= to the size advertised in the header,