Support checking all fields

Author: likeadeckofcards

packages/core/src/client.ts

@@ -139,7 +139,7 @@ const resolveConfig = (config: Config): Config => {
             ...config.precognitive !== false ? {
                 Precognition: true,
             } : {},
-            ...only ? {
+            ...only && Array.from(only).length ? {
                 'Precognition-Validate-Only': Array.from(only).join(),
             } : {},
         },

packages/core/tests/validator.test.js

@@ -704,6 +704,22 @@ it('supports async validate with only key for untouched values', async () => {
     await assertPendingValidateDebounceAndClear()
 })
 
+it('supports async validate without only key', async () => {
+    let config
+    axios.request.mockImplementation((c) => {
+        config = c
+
+        return Promise.resolve({ headers: { precognition: 'true', 'precognition-success': 'true' }, status: 204, data: '' })
+    })
+    const validator = createValidator((client) => client.post('/foo', {}))
+
+    validator.validate()
+
+    expect(config.headers).not.toHaveProperty('Precognition-Validate-Only')
+
+    await assertPendingValidateDebounceAndClear()
+})
+
 it('supports async validate with depricated validate key for untouched values', async () => {
     let config
     axios.request.mockImplementation((c) => {