What does the ‘Pass through URL parameters’ feature do?

The Pass through URL parameters feature copies the URL parameters from the page where your widget is embedded and appends them to the URL you load in an iFrame integration. This makes it easy to pass visitor-specific data into embedded forms, booking tools, or other external pages.

How it works

If the parent page URL is:

https://widgetbird.com/[email protected]&utm_campaign=spring

…and your iFrame URL is:

https://forms.example.com/booking

then the iFrame will load:

https://forms.example.com/[email protected]&utm_campaign=spring

Tip: Values are URL-encoded automatically, so special characters (like @) will be safe.

When to use it

• Prefilling form fields (email, name, customer ID)
• Passing UTM parameters into your embedded tool
• Keeping tracking parameters consistent between your site and embedded pages

How to enable it

1. Go to https://app.widgetbird.com.
2. Open your widget and go to Integrations.
3. Choose the iFrame integration.
4. Enable Pass through URL parameters.
5. Save/publish your widget.