fix build errors

src/lightdm-webkit2-greeter.c

@@ -216,7 +216,7 @@ message_received_cb(WebKitUserContentManager *manager,
 		message_str = "";
 		printf("Error running javascript: unexpected return value");
 	}
-quit
+
 	if (strcmp(message_str, "LockHint") == 0) {
 		lock_hint_enabled_handler();
 	} else if (strcmp(message_str, "Heartbeat") == 0) {

themes/antergos/js/greeter.js

@@ -82,9 +82,15 @@ class AntergosThemeUtils {
 
 
 	initialize_theme_heartbeat() {
+		var heartbeats = 0;
+
 		this.log('Initializing theme heartbeat.');
 		this.heartbeat = setInterval(() => {
+			++heartbeats;
 			window.webkit.messageHandlers.GreeterBridge.postMessage('Heartbeat');
+			if (heartbeats < 20) {
+				console.log('Sending heartbeat...');
+			}
 		}, 5000);
 	}