How can I prevent the preflight requests and only make a single POST request in Webflow when submitting a form using ajax in custom code?

To prevent preflight requests and make a single POST request in Webflow when submitting a form using Ajax in custom code, follow these steps:

1. Create a form in Webflow: Start by designing your form using Webflow's visual editor. Add the necessary form fields and make sure to set appropriate field types and validation rules.

2. Add a custom code section: Once your form is designed, add a Custom Code element in Webflow to the page where your form resides. This will allow you to include custom JavaScript code that will handle the form submission.

3. Write the JavaScript code: In the Custom Code section, write the JavaScript code that will handle the form submission using Ajax. Here's an example of how the code should look:

// Select the form elementvar form = document.querySelector('#your-form-id');// Add an event listener to the form submit eventform.addEventListener('submit', function(event) {  event.preventDefault(); // Prevent the default form submit behavior    // Collect form data  var formData = new FormData(form);    // Create a new XMLHttpRequest object  var xhr = new XMLHttpRequest();  // Set the request method and URL  xhr.open('POST', 'your-api-endpoint', true);    // Set the request headers  xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');    // Set the request callback  xhr.onreadystatechange = function() {    if (xhr.readyState === XMLHttpRequest.DONE && xhr.status === 200) {      // Success callback      console.log(xhr.responseText);    }  }    // Send the request with the form data  xhr.send(new URLSearchParams(formData));});

1. Update the code with your specific details: In the code above, replace #your-form-id with the actual ID of your form element, and replace your-api-endpoint with the URL of your API endpoint that will handle the form submission. You can also customize the success callback to perform any additional actions you require.

2. Publish your website: Once you have added the custom code and made any necessary changes, publish your Webflow website.

By following these steps, you can prevent preflight requests and ensure that only a single POST request is made when submitting a form using Ajax in custom code in Webflow.

Additional Questions:

1. How can I include additional form fields in the Ajax request when submitting a form in Webflow?
2. Can I validate form input before submitting the form using Ajax in Webflow?
3. How do I handle form submission errors when using Ajax in Webflow?