Yes, it is a bug, this function https://github.com/rabbitmq/rabbitmq-management/blob/rabbitmq-management-50/priv/www/js/main.js#L642 it is not raised on IE11.

I changed it with this:
function postprocess_partial() {
$('.pagination_class').keypress(function(e) {
if (e.keyCode == 13) {
update_pages(current_template, !!$(this).attr('data-page-start') ? $(this).attr('data-page-start') : $(this).val());
}
});

now seems work correctly. I will made a few tests

Please submit a PR and I will test it in other browsers and on OS X/Linux some more.

Thank you @michaelklishin ! I did also a few tests also using Opera 34.0.2036.50 on Windows 7

Fixed in #115.