houdini/app/views/components/_upload_banner_image.html.erb

<%- # License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later -%>
<div class='modal' id='uploadBannerImage'>
  <%= render 'common/modal_header', title: 'Banner Image' %>
	<div class='modal-body'>

    <fieldset class='u-centered'>
			<p>Select and upload a banner image for this page.</p>
			<p class='u-marginBottom--20'>For best results, the image should be <strong>1000px by 120px</strong> in size.</p>
			<form autosubmit action='<%= end_point %>' method='put' data-reload>
				<div class='image-upload image-upload--banner' style='background-image:url(<%= image_url ? image_url : '' %>)'>
					<span><i class='fa fa-image'></i> Select</span>
					<input type='file' name="<%= input_name %>" required>
				</div>
				<p class='u-color--red'>
					<!--= show_if (length image_upload.error) -->
					<small><!--= put image_upload.error --></small>
				</p>
				<div class='u-width--500 u-margin--auto'>
					<button type='submit' class='button--small u-width--full u-marginTop--20' data-loading='Uploading...'>
						Upload <%= image_url ? 'Different Image' : '' %>
					</button>
					<a class='button--small red u-marginTop--10 u-width--full' <%= image_url ? '' : 'disabled' %>>
						<!--= on 'click' (confirm 'Are you sure?' remove_banner_image ) -->
						Remove Image
					</a>
				</div>
			</form>
		</fieldset>

	</div> <!-- modal-body -->
</div>