Now we have a working version without any JS. Way easier to do because javascript form submit blows hot wads.

views/admin/table/view.html

@@ -1,17 +1,5 @@
 <script>
   let Data = new GetJson("/api/admin/table/{{ .Table }}/{{ .Id }}/");
-
-  const PostForm = async (url, data) => {
-    console.log("DATA", JSON.stringify(data));
-    return await fetch(url, {
-      method: "POST",
-      mode: "same-origin",
-      body: JSON.stringify(data),
-      headers: {
-        'Content-Type': 'application/json'
-      }
-    });
-  }
 </script>
 
 <blockstart>
@@ -25,14 +13,14 @@
       <template x-for="(value, key) in item">
         <div>
           <label x-text="key" x-bind:for="key"></label>
-          <input x-text="value" x-model="item[key]" x-bind:id="key" />
+          <input x-bind:name="key" x-text="value" x-model="item[key]" x-bind:id="key" />
         </div>
       </template>
     </middle>
     <bottom>
       <button-group>
         <button type="button">Back</button>
-        <button type="button" @click.prevent="PostForm('/api/admin/table/{{ .Table }}/{{ .Id }}/', item)">Update</button>
+        <button type="submit">Update</button>
         <button type="button" @click.prevent="console.log('DELETE', item.id)">Delete</button>
       </button-group>
     </bottom>