function to redirect a webpage to another using post method

redirect_by_post.js

function redirectByPost(url, parameters, inNewTab) {
  parameters = parameters || {};
  inNewTab = inNewTab === undefined ? true : inNewTab;

  var form = document.createElement("form");
  form.id = "reg-form";
  form.name = "reg-form";
  form.action = url;
  form.method = "post";
  form.enctype = "multipart/form-data";

  if (inNewTab) {
    form.target = "_blank";
  }

  Object.keys(parameters).forEach(function (key) {
    var input = document.createElement("input");
    input.type = "text";
    input.name = key;
    input.value = parameters[key];
    form.appendChild(input);
  });

  document.body.appendChild(form);
  form.submit();
  document.body.removeChild(form);

  return false;
}

Do not use raw HTML at line 12. Instead, create the input element and set its value programmatically:

const input = document.createElement('input')
input.name = key
input.value = pparameters[key]
form.appendChild(input)

Using raw HTML do not work with " and line breaks

Thank you, now the function has been improved, and the dependency on JQuery has been removed. 😉