Move server to root dir.

src/_h5ai/public/js/lib/server.js

@@ -0,0 +1,32 @@
+const {jq, lo} = require('./globals');
+
+function request(data) {
+    return new Promise(resolve => {
+        jq.ajax({
+            url: '?',
+            data,
+            type: 'post',
+            dataType: 'json'
+        })
+        .done(json => resolve(json))
+        .fail(() => resolve());
+    });
+}
+
+function formRequest(data) {
+    const $form = jq('<form method="post" action="?" style="display:none;"/>');
+
+    lo.each(data, (val, key) => {
+        jq('<input type="hidden"/>')
+            .attr('name', key)
+            .attr('value', val)
+            .appendTo($form);
+    });
+
+    $form.appendTo('body').submit().remove();
+}
+
+module.exports = {
+    request,
+    formRequest
+};