Scss seems to compile fine to css (I see the new style). But whenever we submit a form, we get an error (see screenshot). We use data-ajax (we use jquery unobtrusive ajax) attributes.

This worked fine before the upgrade to 5.0.0, but now seems to conflict with jQuery unobtrusive ajax. Whenever we add this data-ajax attribute, we get this error.

Could you explain why this conflict suddenly appears? I can't find anything in the changelog that could cause this. And Is there a way around this?

<form id="getForm" action="@Url.Action("Get")" data-ajax="true"></form>

<script>
$(document).ready(function () {
    $('#getForm').submit();
});
</script>