use note groups for save

editors/demo/src/Editoria/Editoria.js

@@ -50,7 +50,7 @@ const Editoria = () => {
           value={demo}
           // readonly
           layout={layout}
-          // onChange={source => console.log(source)}
+          onChange={source => console.log(source)}
           user={user}
         />
       </>

wax-prosemirror-core/src/Wax.js

 /* eslint react/prop-types: 0 */
 import React, { useEffect, useState } from 'react';
 import debounce from 'lodash/debounce';
-
+import { each } from 'lodash';
 import { DOMSerializer } from 'prosemirror-model';
 
 import WaxProvider from './WaxContext';
@@ -56,13 +56,21 @@ const Wax = props => {
       content => {
         /* HACK  alter toDOM of footnote, because of how PM treats inline nodes
       with content */
-        if (schema.nodes.footnote) {
-          const old = schema.nodes.footnote.spec.toDOM;
-          schema.nodes.footnote.spec.toDOM = node => {
-            // eslint-disable-next-line prefer-rest-params
-            old.apply(this);
-            if (node) return ['footnote', node.attrs, 0];
-          };
+
+        const notes = [];
+        each(schema.nodes, node => {
+          if (node.groups.includes('notes')) notes.push(node);
+        });
+
+        if (notes.length > 0) {
+          notes.forEach(note => {
+            const old = schema.nodes[note.name].spec.toDOM;
+            schema.nodes[note.name].spec.toDOM = node => {
+              // eslint-disable-next-line prefer-rest-params
+              old.apply(this);
+              if (node) return [note.name, node.attrs, 0];
+            };
+          });
         }
 
         if (targetFormat === 'JSON') {
@@ -71,13 +79,16 @@ const Wax = props => {
           const serialize = serializer(schema);
           WaxOnchange(serialize(content));
         }
-        if (schema.nodes.footnote) {
-          const old = schema.nodes.footnote.spec.toDOM;
-          schema.nodes.footnote.spec.toDOM = node => {
-            // eslint-disable-next-line prefer-rest-params
-            old.apply(this);
-            if (node) return ['footnote', node.attrs];
-          };
+
+        if (notes.length > 0) {
+          notes.forEach(note => {
+            const old = schema.nodes[note.name].spec.toDOM;
+            schema.nodes[note.name].spec.toDOM = node => {
+              // eslint-disable-next-line prefer-rest-params
+              old.apply(this);
+              if (node) return [note.name, node.attrs];
+            };
+          });
         }
       },
       1000,

wax-prosemirror-schema/src/nodes/footNoteNode.js

 const footnote = {
-  group: 'notes, inline',
+  group: 'notes inline',
   content: 'inline*',
   inline: true,
   atom: true,