diff --git a/appshell/appshell_extensions.cpp b/appshell/appshell_extensions.cpp
index 4723876d9..773cc68a6 100644
--- a/appshell/appshell_extensions.cpp
+++ b/appshell/appshell_extensions.cpp
@@ -38,6 +38,7 @@
 
 extern std::vector<CefString> gDroppedFiles;
 extern int g_remote_debugging_port;
+extern std::string g_get_remote_debugging_port_error;
 
 namespace appshell_extensions {
 
@@ -57,6 +58,7 @@ class ProcessMessageDelegate : public ClientHandler::ProcessMessageDelegate {
         CefRefPtr<CefListValue> argList = message->GetArgumentList();
         int32 callbackId = -1;
         int32 error = NO_ERROR;
+        std::string errInfo;
         CefRefPtr<CefProcessMessage> response = 
             CefProcessMessage::Create("invokeCallback");
         CefRefPtr<CefListValue> responseArgs = response->GetArgumentList();
@@ -844,7 +846,13 @@ class ProcessMessageDelegate : public ClientHandler::ProcessMessageDelegate {
             uberDict->SetList(1, allStats);
             responseArgs->SetList(2, uberDict);
         } else if (message_name == "GetRemoteDebuggingPort") {
-            responseArgs->SetInt(2, g_remote_debugging_port);
+            if (g_get_remote_debugging_port_error.empty() && g_remote_debugging_port > 0) {
+                responseArgs->SetInt(2, g_remote_debugging_port);
+            }
+            else {
+                responseArgs->SetNull(2);
+                errInfo = g_get_remote_debugging_port_error;
+            }
         }
 
         else {
@@ -853,8 +861,13 @@ class ProcessMessageDelegate : public ClientHandler::ProcessMessageDelegate {
         }
       
         if (callbackId != -1) {
-            responseArgs->SetInt(1, error);
-          
+            if (errInfo.empty()) {
+                responseArgs->SetInt(1, error);
+            }
+            else {
+                responseArgs->SetString(1, errInfo);
+            }
+
             // Send response
             browser->SendProcessMessage(PID_RENDERER, response);
         }
diff --git a/appshell/cefclient.cpp b/appshell/cefclient.cpp
index f0f875658..07b7fe9fe 100644
--- a/appshell/cefclient.cpp
+++ b/appshell/cefclient.cpp
@@ -21,6 +21,7 @@
 
 CefRefPtr<ClientHandler> g_handler;
 int g_remote_debugging_port = 0;
+std::string g_get_remote_debugging_port_error;
 
 #ifdef OS_WIN
 bool g_force_enable_acc = false;
@@ -99,24 +100,22 @@ void AppGetSettings(CefSettings& settings, CefRefPtr<CefCommandLine> command_lin
   // Enable dev tools
   CefString debugger_port = command_line->GetSwitchValue("remote-debugging-port");
   if (!debugger_port.empty()) {
-    const long port = strtol(debugger_port.ToString().c_str(), NULL, 10);
-    if (errno == ERANGE || port == 0) {
-        LOG(ERROR) << "Could not enable remote debugging."
-                   << " Error while parsing remote-debugging-port arg: "<< debugger_port.ToString();
-        errno = 0;
+    g_get_remote_debugging_port_error = debugger_port.ToString();
+    long port = strtol(g_get_remote_debugging_port_error.c_str(), NULL, 10);
+    if (errno == ERANGE) {
+      errno = port = 0;
+    }
+    static const long max_port_num = 65535;
+    static const long max_reserved_port_num = 1023;
+    if (port > max_reserved_port_num && port < max_port_num) {
+      g_remote_debugging_port = static_cast<int>(port);
+      settings.remote_debugging_port = g_remote_debugging_port;
+      g_get_remote_debugging_port_error.clear();
     }
     else {
-        static const long max_port_num = 65534;
-        static const long max_reserved_port_num = 1025;
-        if (port >= max_reserved_port_num && port <= max_port_num) {
-          g_remote_debugging_port = static_cast<int>(port);
-          settings.remote_debugging_port = g_remote_debugging_port;
-        }
-        else {
-          LOG(ERROR) << "Cannot enable remote debugging on port "<< port
-                     << ". Port numbers should be between "<< max_reserved_port_num
-                     << " and " << max_port_num << ".";
-        }
+      // Setting debugging port to highest number will disable remote debugging
+      // As setting.remote_debugging_port has higher priority compared to command line option
+      settings.remote_debugging_port = max_port_num;
     }
   }