Custom AsyncWiFiManagerParameter Invalid conclusion HTML

[kocshy]

#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESPAsyncWebServer.h>
#include <ESP8266HTTPClient.h>
#include <DNSServer.h>
#include <ESPAsyncWiFiManager.h>
#include "LittleFS.h"

AsyncWebServer server(80);
DNSServer dns;

void setup() {
    Serial.begin(115200);
    LittleFS.begin();
    AsyncWiFiManager wifiManager(&server, &dns);
    wifiManager.setDebugOutput(true);

    AsyncWiFiManagerParameter param_mqtt_title("<h3>Title</h3>");
    AsyncWiFiManagerParameter param_mqtt_checkbox("mqtt", "", "1", 1, " type=\"checkbox\"");
    AsyncWiFiManagerParameter param_mqtt_checkbox_label("<label for=\"mqtt\">Using MQTT</label>");
    AsyncWiFiManagerParameter div("<div></div>");
    AsyncWiFiManagerParameter param_mqtt_ip_label("<label for=\"mqtt_ip\">Mqtt ip:</label>");
    AsyncWiFiManagerParameter param_mqtt_ip("mqtt_ip", "0.0.0.0", "", 16, " type=\"text\" disabled");
    AsyncWiFiManagerParameter param_mqtt_port_label("<label for=\"mqtt_port\">Mqtt port:</label>");
    AsyncWiFiManagerParameter param_mqtt_port("mqtt_port", "1883", "1883", 5, " type=\"text\" disabled");
    AsyncWiFiManagerParameter param_mqtt_user_label("<label for=\"mqtt_user\">Mqtt user:</label>");
    AsyncWiFiManagerParameter param_mqtt_user("mqtt_user", "User", "", 16, " type=\"text\" disabled");
    AsyncWiFiManagerParameter param_mqtt_pass_label("<label for=\"mqtt_pass\">Mqtt password:</label>");
    AsyncWiFiManagerParameter param_mqtt_pass("mqtt_pass", "", "", 16, " type=\"text\" disabled");
    AsyncWiFiManagerParameter param_mqtt_script("<script>function b(d){mqtt_ip.disabled = mqtt_port.disabled = mqtt_user.disabled = mqtt_pass.disabled = d}mqtt.addEventListener('change', (event) => b(!mqtt.checked));</script>");

    wifiManager.addParameter(&param_mqtt_title);
    wifiManager.addParameter(&param_mqtt_checkbox);
    wifiManager.addParameter(&param_mqtt_checkbox_label);    
    wifiManager.addParameter(&div);
    wifiManager.addParameter(&param_mqtt_ip_label);
    wifiManager.addParameter(&param_mqtt_ip);
    wifiManager.addParameter(&param_mqtt_port_label);
    wifiManager.addParameter(&param_mqtt_port);
    wifiManager.addParameter(&param_mqtt_user_label);
    wifiManager.addParameter(&param_mqtt_user);
    wifiManager.addParameter(&param_mqtt_pass_label);
    wifiManager.addParameter(&param_mqtt_pass);
    wifiManager.addParameter(&param_mqtt_script);
    
    wifiManager.autoConnect(("Module-"+String(ESP.getChipId())).c_str());
}

void loop() {
}

The param_mqtt_title parameter is displayed as a HTML tag input. I checked and understood that the condition in line 967 returns true.