How to Send HTTP Response Code to Client in ESP8266 in AP Mde

Question

I am Creating an Arduino Uno + ESP8266-ESP01 Project.

I want to Send SSID and PASS from my app to ESP with

GET REQUEST like "http://192.168.4.1/Set?ssid=MySSID,pass=Mypass"

but when i get this URL from my app it is saying unsuccessful get

because of the response code from ESP.

So, is there any Command to Set HTTP Response Code

My Arduino Uno Code

#include <SoftwareSerial.h>

SoftwareSerial ESP(2, 3); // RX, TX

int Count;
void setup() {
  Serial.begin(9600);
  Serial.println("Started");
  ESP.begin(115200);  
  ESP.println("AT+UART_DEF=9600,8,1,0,0");
  delay(1000);
  ESP.begin(9600);
  delay(1000);
  ESP.println("AT");
  delay(1000);
  ESP.println("AT+RST");
  delay(1000);
  ESP.println("AT+CWMODE=2");
  delay(1000);
  ESP.println("AT+CIPMUX=1");
  delay(1000);
  ESP.println("AT+CIPSERVER=1,80");
  delay(1000);
  Serial.println("Server Started");
  Serial.print(ESP.readString());
}

void loop() {  
  if(ESP.available()>0){
    String input = ESP.readString();
    if(input.indexOf("+IPD")>0){
    Serial.println(\n"AVAILABLE");
    String Send = "<h1>" + String(Count) + "</h1>\r\n\r\n";
    Serial.print(input);
    HandleClient(Send);
    Count++;
    Serial.println("SENT");
    }else Serial.println(input);
  }
}

String HandleClient(String getStr)
{  
  int wait,ok;  
  wait=20000;
  ok=0;
  String cmd = "AT+CIPSEND=0,";
  cmd += String(getStr.length()-4);
  Serial.println(cmd);
  ESP.println(cmd);  
  delay(5000);
  if(ESP.available())    
  {         
      String str=ESP.readString();
      Serial.println(str);
      if(str.indexOf('>')>0)
      {
        ESP.print(getStr);
        Serial.println(getStr);
        delay(500);
        String messageBody = "";
        while (ESP.available()) 
        {
          String line = ESP.readStringUntil('\n');
          if (line.length() == 1) 
          { 
            messageBody = ESP.readStringUntil('\n');
          }
          ESP.println("AT+CIPCLOSE=0");     
          Serial.println("AT+CIPCLOSE=0y"); 
          Serial.println(ESP.readString());
          ESP.flush();
          delay(10000);
        }
        return messageBody;
     }
     else
     {
       ESP.println("AT+CIPCLOSE=0");     
       Serial.println("AT+CIPCLOSE=0x"); 
       delay(10000);
     }   
  }
}```