Can a website (HTML5,JavaScript) access a mobile device's (android/iPhone) contact list, SDCard files

Question

Can a website (HTML5,JavaScript) access a mobile device\'s (android/iPhone)
contact list, SDCard files? A website as in one opened in a browser not a phonegap applicatio

Answer 1

Chrome has since shipped their own version of a "Contact Picker" HTML5 API in Chrome 80: https://web.dev/contact-picker.

Chrome only: it is not a W3C Standard nor is it on the W3C Standards Track.

selectRecipientsButton.addEventListener('click', async () => {
  const contacts = await navigator.contacts.select(['name', 'email'], {multiple: true});

  if (!contacts.length) {
    // No contacts were selected in the picker.
    return;
  }

  // Use the names and e-mail addresses in |contacts| to populate the
  // recipients field in the website’s UI.
  populateRecipients(contacts);
});