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DOCS: Note the differing nonce_verify default on draft endpoints #17

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DOCS: Note the differing nonce_verify default on draft endpoints #17

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19 changes: 19 additions & 0 deletions src/hooks/filters/miscellaneous.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1481,6 +1481,25 @@ add_filter('fluentform/nonce_verify', function ($status, $formId) {

This filter is located in FluentForm\app\Services\Form\FormValidationService -> validateNonce()

**Defaults differ by endpoint**

| Endpoint group | Default | Applied in |
| --- | --- | --- |
| Form submission | `false` (off) | `FormValidationService::validateNonce()`, `FormHandler::validateNonce()` |
| Save & Continue / partial entries | `true` (on) | `DraftSubmissionsManager::shouldVerifyNonce()` (Pro) |

The draft endpoints default to **on** because they are `nopriv` and carry
additional hardening (draft privacy, and an open-mail-relay throttle on the
resume-link email). Returning `false` disables the nonce on all five of them at
once — `fluentform_step_form_get_data`, `fluentform_step_form_save_data`,
`fluentform_save_form_progress_with_link`, `fluentform_get_form_state` and
`fluentform_email_progress_link` — so the per-IP rate limit becomes the only
remaining control on the mail-sending one.

This is the supported way to keep Save & Continue working behind a full-page
cache, where the nonce is frozen in the cached HTML and goes stale once the
WordPress nonce tick rolls (~12 hours), causing HTTP 422 responses.

</explain-block>

<explain-block title="fluentform/number_input_mode">
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