LOOK AT LINE 70.

server.cpp

#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <string>
#include "FS.h"
using namespace std;
//std::string

char payload[] = "<img src='im.png' height='2000' width='1500'/>";

/* Set these to your desired credentials. */
//1AManInTh3Middl3
const char *ssid = "DONT JOIN!!";
const char *password = "";
IPAddress myIP;

WiFiServer httpserver(80);

void setup() {
  delay(4000);
	Serial.begin(9600);
	Serial.println();
    // put your setup code here, to run once:
    Serial.println("Configuring access point...");
  	/* You can remove the password parameter if you want the AP to be open. */
  	WiFi.softAP(ssid, password);

  	myIP = WiFi.softAPIP();
  	Serial.println("AP IP address: ");
  	Serial.println(myIP);
    httpserver.begin();
}

void loop() {
    // put your main code here, to run repeatedly:
    WiFiClient client = httpserver.available();
    if(!client){return;}
    if(client.available()){
    String req = client.readStringUntil('\0');
    Serial.println(req);

    File f;
    if(SPIFFS.begin()){
      f = SPIFFS.open("/a.png", "r");
      Serial.println("Resource loaded...");
    }else{
      Serial.print("Fatal fail!");
      while(1);
    }
    const int buffsize = 1760;
    char response[buffsize];
      //RANDOM STRING THAT NEEDS TO BE SEEN IN WIRESHARK
    client.print("1111111ASDIHAOSDHAIOSHDOIAHSDOIHAOISHDX1111111ASDIHAOSDHAIOSHDOIAHSDOIHAOISHDX1111111ASDIHAOSDHAIOSHDOIAHSDOIHAOISHDX\r\n\r\n");
    //client.println("HTTP/1.1 200 OK");
    //client.println("Connection: keep-alive");
    //client.println("Content-Type: image/png");
    //client.print("Content-Length: ");
    //client.println(f.size());
    //client.println();
    /*int count = 0;
    while(f.available()){
      response[count] = f.read();
      count++;
      if(count>buffsize-1){
        client.write((const uint8_t *)response,buffsize);
        count = 0;
      }


    }
    if(count>0){
      client.write((const uint8_t *)response,buffsize);
    }
    //"HTTP/1.1 200 OK\r\nConnection: keep-alive\r\nContent-Type: image/png\r\nContent-Length: %d",f.size()
    //strcpy(response,"HTTP/1.1 200 OK\r\nConnection: keep-alive\r\nContent-Type: image/png\r\nContent-Length: ");
    //itoa(f.size(),response+strlen(response),10);
    //Serial.println("--------Debug response ------- ");
    //Serial.println(response);
    //Serial.println("------------------------------ ");

    //res =  string("HTTP/1.1 200 OK\r\nConnection: keep-alive\r\nContent-Type: image/png\r\nContent-Length:") + itoa(f.size());
    //const char *buff = res.c_str();
    //Serial.println(client.println(response));
    //Serial.println();
*/
    f.close();
    client.flush();
  }

}