btcpayserver/BTCPayServer/Views/Shared/_Confirm.cshtml

@model BTCPayServer.Abstractions.Models.ConfirmModel
<div class="modal fade" id="@Html.Id("ConfirmModal")" tabindex="-1" aria-labelledby="@Html.Id("ConfirmTitle")" aria-hidden="true">
    <partial name="ConfirmModal" model="Model" />
</div>

<script>
    (function () {
        function fullId(componentName) {
            var id = @Safe.Json(Html.Id(null));
            if (id)
                return id + '_' + componentName;
            return componentName;
        }
        const modal = document.getElementById(fullId('ConfirmModal'))
        modal.addEventListener('show.bs.modal', event => {
            const $target = event.relatedTarget
            const $form = document.getElementById(fullId('ConfirmForm'))
            const $text = document.getElementById(fullId('ConfirmText'))
            const $title = document.getElementById(fullId('ConfirmTitle'))
            const $description = document.getElementById(fullId('ConfirmDescription'))
            const $input = document.getElementById(fullId('ConfirmInput'))
            const $inputText = document.getElementById(fullId('ConfirmInputText'))
            const $continue = document.getElementById(fullId('ConfirmContinue'))
            if ($target.name)
                $continue.name = $target.name;
            if ($target.value)
                $continue.value = $target.value;


            const { title, description, confirm, confirmInput } = $target.dataset
            const action = $target.dataset.action || ($target.nodeName === 'A'
                ? $target.getAttribute('href')
                : $target.form.getAttribute('action'))
            if ($form && !$form.hasAttribute('action')) $form.setAttribute('action', action)
            if (title) $title.textContent = title
            if (description) $description.innerHTML = description
            if (confirm) $continue.textContent = confirm
            if (confirmInput) {
                $text.removeAttribute('hidden')
                $continue.setAttribute('disabled', 'disabled')
                $inputText.textContent = confirmInput
                $input.setAttribute("autocomplete", "off")
                $input.addEventListener('input', event => {
                    event.target.value.trim() === confirmInput
                        ? $continue.removeAttribute('disabled')
                        : $continue.setAttribute('disabled', 'disabled')
                })
                $form.addEventListener('submit', event => {
                    if ($input.value.trim() !== confirmInput) {
                        event.preventDefault()
                    }
                })
            } else {
                $text.setAttribute('hidden', 'hidden')
                $continue.removeAttribute('disabled')
            }
        })
        modal.addEventListener('shown.bs.modal', event => {
            const $target = event.relatedTarget
            const $input = document.getElementById(fullId('ConfirmInput'))
            const { confirmInput } = $target.dataset
            if (confirmInput) {
                $input.focus()
            }
        })
    })()
</script>