Please advice: I'm redirecting through JS to customer login page customer/account/login and I want that customer email field should be already filled with some value, which I provide.

1 Answer 1


Before you redirect to the customer/account/login, also send a Ajax call with this code:

            $.ajax ({
                type : "POST",
                url : "<?php echo $block->getUrl("some/controller/url")?>?isAjax=true",
                showLoader : true,
                data : {
                    request : 'filled_email',
                    email : 'your_custom_email',
                success : function () {
                    window.location.href = "<?php echo $block->getUrl('customer/account/login')?>";

and in the Controller, use this:

 * @var \Magento\Framework\Registry
protected $_coreRegistry;

public function __construct(
        \Magento\Customer\Model\Session $session,
        ResultJsonFactory $resultJsonFactory,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\App\Action\Context $context
    ) {
        $this->_session = $session;
        $this->resultJsonFactory = $resultJsonFactory;
        $this->_coreRegistry = $registry;
        return parent::__construct($context);

    public function execute()
        $param = $this->getRequest()->getParams();
        $request = $param['request'];
        if ($request == 'filled_email') {
        return $this->resultJsonFactory->create()->setData(['registry' => 'success']);
        // TODO: Implement execute() method.

Finally, add your custom Block within template in customer_account_login.xml to check if the $this->_session->getFilledEmail() == true so filled the email field with the $this->_session->getEmailFill() value. Don't forget to reset the session after done.

Hope it help!

  • Hi Nero, thanks for your response. Initially I thought that customer auth form is generated via UI components and I could not find how. The template I was looking for is 'module-customer/view/frontend/templates/form/login.phtml'. And email field has value="<?= $block->escapeHtmlAttr($block->getUsername()) ?>". So the idea with session is correct. And for this specific case need to set into seession ->setUsername($value). Voting +1 for your time, but not marking as accepted answer.
    – zhartaunik
    Commented Dec 12, 2017 at 13:24

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