Open a new browser window using HTTP POST method.

open-new-broswer-window-by-post-method.js

/**
* Submit login form with POST method.
* @param {string} action The login page URL.
* @param {string} target The name of the iframe, or `_blank`;
* @param {object} params The dictionary of form data.
* @returns The form element inserted into the page.
*/
export const postForm = (action, target, params) => {
  const form = document.createElement('form')
  form.style.display = 'none'
  form.setAttribute('method', 'post')
  form.setAttribute('action', action)
  form.setAttribute('target', target)

  Object.entries(params).forEach(([key, value]) => {
    const input = document.createElement('input')
    input.setAttribute('type', 'text')
    input.setAttribute('name', key)
    input.value = value
    form.appendChild(input)
  })

  document.body.appendChild(form)
  form.submit()
}