Prefix Gate - Thread Prefix Interstitial - Xenforo 2 1.0.14

Prefix Gate is a lightweight XenForo 2.3 add-on that displays a configurable interstitial to guests before they can view threads containing a selected thread prefix.

It was originally created for forums that want to place a warning in front of threads marked with an NSFW or similar prefix, but it can be used with any thread prefix.

Features

• Select any existing thread prefix to trigger the interstitial.
• Guests must acknowledge the warning before viewing gated threads.
• Logged-in members are unaffected.
• Acknowledgment applies globally to all gated threads.
• Remember acknowledgment for the browser session, 1 day, 7 days, or 30 days.
• Browser session is the default.
• Supports XenForo's standard single thread prefix system.
• Automatically supports Xon's Multi Prefix when installed, including threads where the gated prefix is one of multiple prefixes.
• Displays the thread title while keeping the thread contents behind the interstitial.
• Warning text and labels are editable XenForo phrases.
• Uses the active XenForo style.
• No database tables, external services, telemetry, callbacks, or visible branding.

Important: Prefix Gate is a content-warning interstitial, not an age-verification or access-control system. It is intended to gate normal thread viewing and does not guarantee that every alternate XenForo content endpoint is protected.

Development note: This add-on was made with AI assistance and manually reviewed, tested, and refined on a live XenForo installation. Code review, bug reports, and feedback are welcome.

 

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