formless_basic_shadow_DOM_form_and_fields_together_in_a_shadow_root.html

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<!DOCTYPE html><html><head><meta charset="utf-8"></head><body>

<!-- Any copyright is dedicated to the Public Domain.

   - http://creativecommons.org/publicdomain/zero/1.0/ -->

<!-- Simple form with form, username and password fields together in a shadow root -->

<!-- This form is based off of toolkit/components/passwordmgr/test/browser/formless_basic.html -->

<span id="wrapper">

</span>

<!-- username, password and submit inputs generated programmatically below -->

<script>

  const wrapper = document.getElementById("wrapper");

  const shadow = wrapper.attachShadow({mode: "closed"});

  const fields = ["username", "password"];

  for (let field of fields) {

    const inputEle = document.createElement("input");

    inputEle.id = field;

    inputEle.name = field;

    if (field === "password") {

      inputEle.type = field;

    shadow.append(inputEle);

  const submitButton = document.createElement("input");

  submitButton.id = "submit";

  submitButton.type = "submit";

  shadow.append(submitButton);

</script>

</body></html>