---
title: "Iframes FAQ"
slug: "iframes-faq"
updated: 2025-11-19T15:03:26Z
published: 2025-11-19T15:03:26Z
canonical: "docs.blackthorn.io/iframes-faq"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blackthorn.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Iframes FAQ

### Redirect URLs

#### Q: How do I set up a **Redirect URL** in an iframe?

**A:** The redirection domain should have relaxed CSP rules (Setup > Security > CSP Trusted Sites) or the parent domain needs to be added to the frame-ancestor rule.

#### Q: How do I redirect an Attendee to an Event Group’s webpage or a different Event after registering for an Event in an iframe?

**A:** You need to specify the relative path instead of the whole URL in the original Event’s **Redirect URL** field. For example, use “/5a195eDuv5V” instead of “https://events.blackthorn.io/5e53zvb7/5a195eDuv5V” in the **Redirect URL** field.

#### Q: How do I ensure Attendees who have registered for an Event are automatically redirected to their AttendeeLink when revisiting the Event's webpage?

**A:** Go to the Event Settings record for the Event and check the **Auto Redirect Users to Confirmation Page** (conference360__ Auto_Redirect_Users_to_Confirmation_Page__c) field. This ensures authenticated users (EC users, authenticated iframe, AttendeeLink users) are redirected to their AttendeeLink.

### Iframes and Third-Party Sources

#### Q: How do I set up Custom CSS Injection, Google Tag Manager, or Google Analytics to work with Iframes?

**A:** Any style, media, font, etc … from third party sources / domains need to include these sources in their CSP rules. This also goes for Google Tag Manager, Google Analytics, and any other tracking tools that generate iframes. See [https://content-security-policy.com/](https://content-security-policy.com/) for more.

### Iframes and Payment Gateways

#### Why am I having issue with my TouchNet gateway in an iframe?

**A:** If your Attendees cannot register for an Event using a TouchNet Payment Gateway when that Event is in an iframe, [click here](https://docs.blackthorn.io/docs/addressing-security-related-errors-for-iphone-users) for information about security-related errors for iPhone users.

#### How do I securely authenticate Transactions with Spreedly?

**A:** To ensure authentication occurs correctly when using iframed components and a Spreedly payment gateway, add the Payment Gateway’s **Spreedly Private Key** and **Spreedly Certificate Token** fields to the Payment Gateway page layout. [Click here](https://docs.blackthorn.io/docs/spreedly#spreedly-and-iframed-components) for more information about these fields.