send form with ajax (vanilla JS)

vanillaAjax.js

const sendForm = async function(form){
          let XHR = new XMLHttpRequest();
          let FD  = new FormData(form);
    
          
        
           window.location.reload();
           
        
          // Define what happens on successful data submission
          XHR.addEventListener('load', function(event) {
            console.log('Yeah! Data sent and response loaded.');
           
          });
        
          // Define what happens in case of error
          XHR.addEventListener('error', function(event) {
          alert('Oops! Something went wrong.');
            console.log('Oops! Something went wrong.');
          });
        
          // Set up our request
          XHR.open('POST', form.action);
        
          // Send our FormData object; HTTP headers are set automatically
         XHR.send(FD);
  
  };

    
  const submitForm = function(form){
        event.preventDefault();    
        sendForm(form);

  }