Magento 2 Hyvä Invalid Form Key: Fixing The "Please Refresh The Page" Error

Magento 2 Hyvä Invalid Form Key errors can disrupt your store’s functionality, leaving users with the frustrating “Invalid Form Key. Please refresh the page.” message. This issue is common when form keys are missing or improperly implemented in your controller. In this guide, we’ll explain how to resolve this error step by step.

Why Does This Error Occur?

Magento uses form keys to ensure security and prevent Cross-Site Request Forgery (CSRF) attacks. If a form key is not properly included in your controller’s HTML output or processing logic, Magento will throw the “Invalid Form Key” error.

The Solution

Update Your Form Code: Ensure your HTML form includes a hidden field for the form key.

<form action="" method=POST>
      <input type="hidden" name="form_key" value="hyva.getFormKey()">
</form>

Verify Controller Configuration: Check your controller to ensure that it processes the submitted form key

$formKey = $this->getRequest()->getParam('form_key');
if (!$this->formKeyValidator->validate($this->getRequest())) {
    throw new \Magento\Framework\Exception\LocalizedException(__('Invalid Form Key.'));
}

Flush Cache: After implementing these changes, clear the Magento cache:

bin/magento cache:flush

Conclusion:

By implementing the above solution, you’ll eliminate the “Invalid Form Key. Please refresh the page.” error in Magento 2 Hyvä. This not only resolves the issue but also ensures your application remains secure and functional.

Got questions? Share them in the comments below, and let’s solve them together!

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