From 331578452fcec9b76cdb4d788e8416dad9229c41 Mon Sep 17 00:00:00 2001
From: "Namhyeon, Go" <gnh1201@gmail.com>
Date: Sun, 20 Jun 2021 07:05:02 +0900
Subject: [PATCH] Update chrome.js

---
 lib/chrome.js | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/lib/chrome.js b/lib/chrome.js
index 1bedcf2..b710878 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -223,12 +223,19 @@ var ChromeObject = function() {
 	};
 	
 	this.sendPageRPC = function(method, params) {
-		this.ws.send("ws://localhost:" + this.debuggingPort + "/devtools/page/" + this.pageId, JSON.stringify({
-			"id": this.pageEventId,
-			"method": method,
-			"params": params
-		}));
-		this.pageEventId++;
+		if (this.pageId != "") {
+			this.ws.send("ws://localhost:" + this.debuggingPort + "/devtools/page/" + this.pageId, JSON.stringify({
+				"id": this.pageEventId,
+				"method": method,
+				"params": params
+			}));
+			this.pageEventId++;
+			console.info("ChromeObject().sendPageRPC() -> Sent");
+		} else {
+			console.error("pageId not specified");
+		}
+
+		return this;
 	};
 
 	this.navigate = function(url) {