How can I pass URL parameters to a redirect URL in Webflow? I need to be able to do this on any link on the page, and also include form dropdown selections.

You can pass URL parameters to a redirect URL in Webflow by using JavaScript to capture the parameters from the current page and append them to all links or form actions dynamically.

1. Capture URL Parameters

• Use JavaScript to extract the query parameters from the current page's URL.
• Example: If the URL is https://yourdomain.com/page?ref=123&utm=abc, you want to get ?ref=123&utm=abc.

2. Append Parameters to All Links

• Add a custom script in the Page Settings › Footer Code or Site Settings › Custom Code › Footer section.
• The script should:
• Loop through all <a> tags.
• Check if the link is meant to redirect (you can filter internal vs. external links if needed).
• Append the current page’s parameters using URLSearchParams.

Example approach:

• Extract parameters: window.location.search
• Loop through all links: document.querySelectorAll('a')
• Append parameters: Conditionally update href if not already present.

3. Include Dropdown Selections in Redirects

• For form-based redirection, use a custom form submission handler:
• Intercept the form submit with JavaScript.
• Read the dropdown selection value.
• Combine it with the existing URL parameters.
• Redirect the user manually using window.location.href.

Steps:

• Use document.querySelector('form').addEventListener('submit', function(e) { ... })
• Prevent the default Webflow form action with e.preventDefault();
• Read the dropdown value using document.querySelector('select[name="dropdown-name"]').value
• Append it as a new query param and redirect using window.location.href = target + combinedParams

4. Optional: Use Webflow Form Settings for Redirect

• If you're using Webflow's Form Redirect URL, note that it's static.
• To make that dynamic, override the redirect with custom code in the Form Submission handler as described above.

Summary

To pass URL parameters to redirect URLs in Webflow:

• Use JavaScript to extract window.location.search and append it to links.
• Intercept and handle form submissions manually to include both URL parameters and dropdown values in the redirect.
• This ensures parameter continuity site-wide and allows email campaign tracking or user-specific navigation.