Iframe Form Submission Code Tracking with Google Tag Manager can be a valuable tool for website owners who want to track user interactions with forms embedded in iframes on their website. In this article, we will explore what iframes are, how they work, and how to use Google Tag Manager to track form submissions from iframes.

What are iframes?

An iframe, or inline frame, is an HTML element that allows you to embed another HTML document within the current page. This is often used to display content from a third-party website or to isolate content from the rest of the page for security reasons. For example, if you wanted to display a map from Google Maps on your website, you could use an iframe to embed the map within your page.

Iframes can be useful for a variety of reasons, but they can also pose some challenges for website owners. One of these challenges is tracking user interactions with forms embedded within iframes. When a user submits a form within an iframe, the form submission is technically happening within a separate HTML document, which can make it difficult to track using traditional tracking methods.

Challenges of tracking form submissions from iframes

As mentioned earlier, tracking user interactions with forms embedded within iframes can be challenging. There are several reasons for this:

Cross-domain security restrictions: When the parent page and the embedded document are hosted on different domains, browser security restrictions prevent the parent page from accessing the content of the iframe. This means that traditional tracking methods, such as using JavaScript to detect form submissions, may not work.

Limited access to iframe content: Even when the parent page and the embedded document are hosted on the same domain, accessing the content of the iframe can be challenging. This is because the content of the iframe is treated as a separate window by the browser, and the parent page cannot directly interact with its elements.

Dynamic iframe content: If the content of the iframe is dynamically generated or loaded asynchronously, tracking form submissions can be even more challenging. This is because the content of the iframe may not be available when the parent page is initially loaded.

How do iframes work?

To understand how iframes work, let’s take a closer look at the HTML code that creates them. Here is an example of an iframe element:

<iframe src="https://www.example.com"></iframe>

In this example, the src attribute specifies the URL of the HTML document that will be embedded within the iframe. When the page containing this iframe is loaded, the browser will fetch the HTML document specified by the src attribute and display it within the iframe.

From the perspective of the parent page (i.e., the page containing the iframe), the embedded document is treated as a separate window. This means that the parent page cannot directly access the content of the iframe or interact with its elements.

How to use Google Tag Manager to track form submissions from iframes

Google Tag Manager (GTM) is a powerful tool that allows you to track user interactions on your website without having to modify your website’s code. To track form submissions from iframes using GTM, you will need to use a combination of custom HTML tags and triggers.

Step 1: Create a custom HTML tag The first step in tracking form submissions from iframes is to create a custom HTML tag that will execute the tracking code. Here is an example of a custom HTML tag that uses jQuery to track form submissions from an iframe:

<script>
$(document).ready(function() {
  $('iframe').on('load', function() {
    $(this).contents().find('form').submit(function() {
      dataLayer.push({
        'event': 'formSubmit'
      });
    });
  });
});
</script>

In this example, we are using jQuery to bind a submit event handler to all forms within iframes on the page. When a form is submitted, the event handler pushes a custom event to the data layer with the name formSubmit.

Step 2: Create a trigger The next step is to create a trigger that will fire the custom HTML tag when a form within an iframe is submitted. Here is an example of a trigger that fires when the custom formSubmit event is pushed to the data layer:

Trigger type: Custom event
Event name: formSubmit

In this example, we are using the Custom event trigger type to fire the tag when the formSubmit event is pushed to the data layer.

Step 3: Create a tag firing rule The final step is to create a tag firing rule that specifies when the tag should be fired. Here is an example of a tag firing rule that fires the custom HTML tag on all pages of the website:

Rule name

Warning: If you don’t know about javascript or don’t have developing knowledge then don’t try to Iframe Form Submission Code Tracking with Google Tag Manager that can break your site, Cart and other functionality 

Disclaimer: Google tag manager belongs to Google property 

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