Manual form tracking

Using javascript to securely send captured form data to LeadBoxer

The LeadBoxer javascript library can be used to capture forms that are submitted by your audience.

The method is straightforward:

  1. Using javascript you add the data to a map

  2. You send the map data when a form is submitted


  • There is no limit on the number of key / value pairs you submit

  • You might need to add a small delay if you redirect to a 'thank-you' page right after a form is submitted

Code example for basic form

See the Pen ExjwYoY by Wart Fransen (@LeadBoxer) on CodePen.

Note: don't forget to run this function when the form is submitted, for example by setting onclick="sendTextForm()" on the submit button.


When the form submit redirects or reloads the page, it is necessary to delay the form submission for one or two second (literally), in order to create a small window during which the form data can be sent to our servers.

Here are a few examples, using jQuery and pure javascript.

You can do this by adding the following to the bottom of the sendTextForm function

setTimeout(function() {
  document.myform.submit();  // replace myform with the <form> name 

// This is an example using jQuery
$(โ€˜formโ€™).submit(function (e) {
  var form = this;
  setTimeout(function () {
  }, 1000); // in milliseconds

// You can also specify the class or ID if you have multiple forms on your page
setTimeout(function () {
}, 5000);

// Or if you want to use the fancier ES6 syntax:
setTimeout(() => $(".profile-form").submit(), 5000);

Working example

For a working example on how to submit form fields go here

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