Added issue test that seems to work.

Author: ciscoheat

src/routes/tests/issue-313/+page.server.ts

@@ -0,0 +1,29 @@
+import { superValidate, message } from '$lib/server';
+import { fail } from '@sveltejs/kit';
+import { schema } from './schema';
+
+import type { Actions, PageServerLoad } from './$types';
+
+///// Load function /////
+
+export const load: PageServerLoad = async () => {
+  const loginForm = await superValidate(schema);
+  return { loginForm };
+};
+
+///// Form actions /////
+
+export const actions: Actions = {
+  default: async ({ request }) => {
+    const form = await superValidate(request, schema);
+
+    console.log('POST', form);
+
+    if (!form.valid) return fail(400, { form });
+
+    console.log(form.data);
+    if (form.data.name === 'fail') return fail(401, { form, isFail: true });
+
+    return message(form, 'Form posted successfully!');
+  }
+};

src/routes/tests/issue-313/+page.svelte

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+<script lang="ts">
+  import { page } from '$app/stores';
+  import { superForm } from '$lib/client';
+  import SuperDebug from '$lib/client/SuperDebug.svelte';
+
+  export let data;
+  export let form;
+
+  const {
+    form: loginForm,
+    errors,
+    message,
+    enhance
+  } = superForm(data.loginForm);
+</script>
+
+<SuperDebug data={$loginForm} />
+
+<p>{form?.form.data.name}</p>
+
+<h3>Superforms testing ground</h3>
+
+{#if $message}
+  <div
+    class="status"
+    class:error={$page.status >= 400}
+    class:success={$page.status == 200}
+  >
+    {$message}
+  </div>
+{/if}
+
+<form method="POST" use:enhance>
+  <label>
+    Name<br />
+    <input
+      name="name"
+      aria-invalid={$errors.name ? 'true' : undefined}
+      bind:value={$loginForm.name}
+    />
+    {#if $errors.name}<span class="invalid">{$errors.name}</span>{/if}
+  </label>
+
+  <label>
+    Email<br />
+    <input
+      name="email"
+      type="email"
+      aria-invalid={$errors.email ? 'true' : undefined}
+      bind:value={$loginForm.email}
+    />
+    {#if $errors.email}<span class="invalid">{$errors.email}</span>{/if}
+  </label>
+  {#if form?.isFail}
+    fail
+  {/if}
+  <button>Submit</button>
+</form>
+
+<hr />
+<p>
+  <a target="_blank" href="https://superforms.rocks/api">API Reference</a>
+</p>
+
+<style>
+  .invalid {
+    color: red;
+  }
+
+  .status {
+    color: white;
+    padding: 4px;
+    padding-left: 8px;
+    border-radius: 2px;
+    font-weight: 500;
+  }
+
+  .status.success {
+    background-color: seagreen;
+  }
+
+  .status.error {
+    background-color: #ff2a02;
+  }
+
+  input {
+    background-color: #ddd;
+  }
+
+  a {
+    text-decoration: underline;
+  }
+
+  hr {
+    margin-top: 4rem;
+  }
+</style>

src/routes/tests/issue-313/schema.ts

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+import { z } from 'zod';
+
+export const schema = z.object({
+	name: z.string().min(1),
+	email: z.string().email()
+});