Ajax call issue in magento 2.2.6

Question

My ajax call not working . It returns

"A technical problem with the server created an error. Try again to continue what you were doing. If the problem persists, try again later."

my ajax call code

function validateAuthorize()
{
    require([
        "jquery"
    ]

, function($){

var name = $('#name').val();
var email = $('#email').val();
$.ajax({
    url: '<?php echo $block->getUrl('path/ajaxcontroller', ['_nosid' => true]); ?>',
    showLoader: true,
    data: {name:name,email:email,form_key:'<?php echo $block->getFormKey(); ?>'},
    type: "POST",
    success: function(result){
        jQuery('#message').html(result);
    }
});

}

controller

My\Module\Controller\Adminhtml\Ajaxcontroller\Index.php

<?php
    namespace My\Module\Controller\Adminhtml\Ajaxcontroller;

    class Index extends \Magento\Backend\App\Action
    {
        protected $resultPageFactory;

        public function __construct(
            \Magento\Backend\App\Action\Context $context,
            \Magento\Framework\Controller\Result\JsonFactory $resultPageFactory
        ) {
            parent::__construct($context);
            $this->resultPageFactory = $resultPageFactory;
        }

        public function execute()
        {
            if($this->getRequest()->isAjax()){
                echo "Testing";
            }
            return false;
        }
    }

Earlier ajax was working properly currently it returns

A technical problem with the server created an error. Try again to continue what you were doing. If the problem persists, try again later

Answer 1

Change ajax code like below way :

$.ajax({
        url: 'admin/my_module/ajaxcontroller/index',
        showLoader: true,
        data: {name:name,email:email,form_key:'<?php echo $block->getFormKey(); ?>'},
        type: "POST",
        success: function(result){
            jQuery('#message').html(result);
        }
    });
}