Javascript no funciona para versiones específicas de iOS de iPhone

Tengo código javascript en mi página web. Funciona para escritorio, Android,
Sin embargo, no funciona para algunos iPhones, cada parte de mi código, eventos de entrada, evento de clic

Funciona para estos modelos y versiones de iPhone:

1. Iphone 13 safari versión 16.6

2. Iphone 12 safari versión 16.6

3. Iphone 13 safari versión 16.5.1

4. Iphone 11 safari versión 16.5

Pero mi código no funciona para este tipo de iPhone:

1. Iphone 11 safari versión 16.1

2. Iphone 11 safari versión 16.3.1

3. Iphone XS Max safari versión 16.5.1

4. Iphone Xr safari versión 16.5.1

5. Safari iPhone XR versión 16.3.1

**Este es mi código:**

document.addEventListener("DOMContentLoaded", function() {
    const header = document.querySelector(".header");
    const langSelect = document.querySelector("#lang_select");
    const langList = document.querySelector(".lang_list");

    header.addEventListener("click", function(event) {
      langList.style.display = langList.style.display === "none" ? "block" : "none";
      event.stopPropagation();
    });

    document.addEventListener("click", function(event) {
      if (!langSelect.contains(event.target)) {
        langList.style.display = "none";
      }
    });

    const fieldInputs = document.querySelectorAll(".field input");

fieldInputs.forEach(function(input) {
  input.addEventListener("focus", function() {
    this.parentElement.classList.add("active");
  });

  input.addEventListener("blur", function() {
    if (this.value === "") {
      this.parentElement.classList.remove("active");
    }
  });
});

let isFirstOpen = false;
  const firstBtn = document.querySelector("#firstBtn");
  const firstDrop = document.querySelector("#firstDrop");

  firstBtn.addEventListener("click", function(event) {
    isFirstOpen = !isFirstOpen;

    if (isFirstOpen) {
      firstDrop.style.display = "block";
    } else {
      firstDrop.style.display = "none";
    }

    event.stopPropagation();
  });

  document.addEventListener("click", function(event) {
  if (
    !event.target.closest("#firstBtn") &&
    !event.target.closest("#firstDrop")
  ) {
    const firstDropElement = document.querySelector("#firstDrop");
    if (firstDropElement.style.display !== "none") {
      firstDropElement.style.display = "none";
      isFirstOpen = false;
    }
  }
});

  



 

      

  document.querySelector("#firstInput input").addEventListener("input", function() {
  const inputVal = this.value;
  let num = inputVal.replace(/[^0-9.]+/g, "");
  let regex = /^[+-]?(\d*\.\d+|\d+\.\d*)([eE][+-]?\d+)?$/;

  if (!regex.test(num)) {
    if (num === ".") {
      num = "";
    } else {
      num = num.replace(/(?<=\..*)\./, "");
    }
  }

  this.value = num;

  const firstCryptoCurrencySymbol = document.querySelector("#currency1 a").dataset.cur;
  const secondCryptoCurrencySymbol = document.querySelector("#currency2 a").dataset.cur;

  fetch("/calculateExchangeRate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      firstCryptoCurrencySymbol: firstCryptoCurrencySymbol,
      secondCryptoCurrencySymbol: secondCryptoCurrencySymbol
    })
  })
  .then(res => res.json())
  .then(data => {
    const exchangeRate = data.rate;
    document.querySelector("#secondInput input").value = num * exchangeRate;
  });
});



document.querySelector("#secondInput input").addEventListener("input", function() {
  const inputVal = this.value;
  let num = inputVal.replace(/[^0-9.]+/g, "");
  let regex = /^[+-]?(\d*\.\d+|\d+\.\d*)([eE][+-]?\d+)?$/;

  if (!regex.test(num)) {
    if (num === ".") {
      num = "";
    } else {
      num = num.replace(/(?<=\..*)\./, "");
    }
  }

  this.value = num;

  const firstCryptoCurrencySymbol = document.querySelector("#currency1 a").dataset.cur;
  const secondCryptoCurrencySymbol = document.querySelector("#currency2 a").dataset.cur;

  fetch("/calculateExchangeRate", {
    method: "POST",
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      firstCryptoCurrencySymbol: firstCryptoCurrencySymbol,
      secondCryptoCurrencySymbol: secondCryptoCurrencySymbol
    })
  })
    .then(res => res.json())
    .then(data => {
      const exchangeRate = data.rate;
      document.querySelector("#firstInput input").value = num / exchangeRate;
    });
});




         
const optionElements = document.querySelectorAll(".option");

optionElements.forEach(function(option) {
  option.addEventListener("click", function(event) {
    if ('ontouchstart' in window || navigator.maxTouchPoints) {
      event.preventDefault();
    }

    let dataCur = this.dataset.cur;
    let imageUrl = this.querySelector(".pm_select_img img").src;
    let optionText = this.querySelector("span").textContent;

    document.querySelector("#firstBtn .pm_select_img img").src = imageUrl;
    document.querySelector("#firstBtn span").textContent = optionText;
    document.querySelector("#firstBtn").dataset.cur = dataCur;

    document.querySelector("#currency1 .pm_select_child").dataset.cur = dataCur;
    document.querySelector("#currency1 .pm_select_child").textContent = dataCur;

    document.querySelector("#hiddenInput").value = dataCur;

    document.querySelector("#amount_send1").dataset.cur = dataCur;
    document.querySelector("#amount_send1 ~ .addons").textContent = dataCur;

    const secondDataCur = document.querySelector("#currency2 a").dataset.cur;

    fetch("/calculateExchangeRate", {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      body: JSON.stringify({
        firstCryptoCurrencySymbol: dataCur,
        secondCryptoCurrencySymbol: secondDataCur
      })
    })
    .then(res => res.json())
    .then(data => {
      const exchangeRate = data.rate;
      document.querySelector(".rate_info").textContent = `1 ${dataCur} = ${exchangeRate} ${secondDataCur}`;
    });

   
    event.stopPropagation();
  });
});

document.addEventListener("click", function() {
  document.querySelector("#firstDrop").style.display = "none";
});



const optionElementsFirst = document.querySelectorAll(".option1");

optionElementsFirst.forEach(function (option) {
  option.addEventListener("click", function (event) {
    if ("ontouchstart" in window || navigator.maxTouchPoints) {
      event.preventDefault();
    }

    let dataCur = this.dataset.cur;
    let imageUrl = this.querySelector(".pm_select_img img").src;
    let optionText = this.querySelector("span").textContent;

    document.querySelector("#secondBtn .pm_select_img img").src = imageUrl;
    document.querySelector("#secondBtn span").textContent = optionText;
    document.querySelector("#secondBtn").dataset.cur = dataCur;

    document.querySelector("#currency2 .pm_select_child").dataset.cur = dataCur;
    document.querySelector("#currency2 .pm_select_child").textContent = dataCur;

    document.querySelector("#hiddenInput2").value = dataCur;

    document.querySelector("#amount_send2").dataset.cur = dataCur;
    document.querySelector("#amount_send2 ~ .addons").textContent = dataCur;

    const secondDataCur = document.querySelector("#currency1 a").dataset.cur;

    fetch("/calculateExchangeRate", {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        firstCryptoCurrencySymbol: dataCur,
        secondCryptoCurrencySymbol: secondDataCur,
      }),
    })
      .then((res) => res.json())
      .then((data) => {
        const exchangeRate = data.rate;
        document.querySelector(".rate_info").textContent = `1 ${dataCur} = ${exchangeRate} ${secondDataCur}`;
      });

    document.querySelector("#secondDrop").style.display = "none";

    
    event.stopPropagation();
  });
});

document.addEventListener("click", function () {
  document.querySelector("#secondDrop").style.display = "none";
});


let isOpen = false;
const secondBtn = document.querySelector("#secondBtn");
const secondDrop = document.querySelector("#secondDrop");

secondBtn.addEventListener("click", function(event) {
  isOpen = !isOpen;

  if (isOpen) {
    secondDrop.style.display = "block";
  } else {
    secondDrop.style.display = "none";
  }

  event.stopPropagation();
});


document.addEventListener("click", function(event) {
  const secondBtn = document.querySelector("#secondBtn");
  const secondDrop = document.querySelector("#secondDrop");
  const isOpen = secondDrop.style.display !== "none";

  if (
    !event.target.closest("#secondBtn") &&
    !event.target.closest("#secondDrop")
  ) {
    if (isOpen) {
      secondDrop.style.display = "none";
    }
  }
});


  })

Lo que he probado:

– Estuve revisando si tengo errores de sintaxis pero no tengo ninguno.
– Estaba pensando que uso algunas funciones avanzadas y rehice mi código con burbuja pero no ayudó
– Estaba pensando que hay un problema con el evento de clic, así que agregué un evento de toque pero no ayudó
– Intenté usar la simulación en Mac, pero en ellos el código funcionó perfectamente.
– Utilicé la simulación en la pila del navegador y ahí estaban mis problemas.