lnked

overflow-y: scroll;
overflow-x: hidden;
overflow-y: -moz-scrollbars-none;
overflow-style: none;

&::-webkit-scrollbar {
    width: 0;
}

var $button = $('button');

$('body').on('submit', 'form', function(e) {
    e.preventDefault();

    $button.addClass('is-busy');
    
    var formData = !!window.FormData ? new FormData($(this)[0]) : $(this).serialize();

    $.ajax({
        url: '/request/url',
        type: 'POST',
        data: formData,
        dataType: 'JSON',
        contentType: false,
        processData: false,
        success: function(response) {
            $button.removeClass('is-busy');
        },
        error: function(response) {
            $button.removeClass('is-busy');
        }
    });
});

<svg role="image">
      <use xlink:href="/put/k/failu/file.svg#back"/>
</svg>

RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(.*)index\.(php|htm|html)($|\ |\?)
RewriteRule ^ /%1 [R=301,L]