Fix duplicate page title on in-theme pages (1.53.1)

Themes print their own page-title <h1> above the_content, and the
tire/review/compare content partials render their own headings — so the
title showed twice. Blank the virtual post's display title via the
the_title filter, scoped to the virtual post's ID 0 so real posts, nav
menu items, and widgets are untouched. Document <title>, AIOSEO tags,
and OG title are unaffected (they come from separate filters).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: RivianTrackr

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to the Rivian Tire Guide plugin will be documented in this f
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [1.53.1] - 2026-07-03
+
+### Fixed
+- **Duplicate page title on in-theme pages.** Themes print their own page-title `<h1>` above `the_content`, and the tire/review/compare content partials each render their own heading — so the title appeared twice (e.g. "Toyo Open Country A/T III (305/45R22) — Rivian Tire Guide" from the theme, then the tire `<h1>` again). `RTG_Theme_Render` now blanks the virtual post's display title via the `the_title` filter (scoped to the virtual post's ID `0`, so real posts, nav menus, and widgets are untouched). The browser-tab `<title>`, AIOSEO tags, and OG title are unaffected.
+
 ## [1.53.0] - 2026-07-02
 
 ### Changed

includes/class-rtg-theme-render.php

@@ -88,6 +88,12 @@ public static function render( $args ) {
         remove_filter( 'the_content', 'wpautop' );
         add_filter( 'the_content', array( __CLASS__, 'filter_the_content' ), 9 );
 
+        // Themes print the page title themselves above the_content, but our
+        // content partials render their own <h1> — blank the virtual post's
+        // DISPLAY title so it isn't shown twice. The document <title> and
+        // AIOSEO tags are unaffected (handled by the filters below).
+        add_filter( 'the_title', array( __CLASS__, 'filter_the_title' ), 20, 2 );
+
         // Title / description / canonical / robots via core + AIOSEO filters.
         add_filter( 'pre_get_document_title', array( __CLASS__, 'filter_document_title' ), 20 );
         add_filter( 'document_title_parts', array( __CLASS__, 'filter_document_title_parts' ), 20 );
@@ -119,6 +125,18 @@ public static function filter_the_content( $content ) {
         return ob_get_clean();
     }
 
+    /**
+     * Suppress the theme-rendered page title for the virtual post (ID 0).
+     * Real posts (nav menu items, widgets, other loops) have non-zero IDs
+     * and pass through untouched.
+     */
+    public static function filter_the_title( $title, $post_id = null ) {
+        if ( self::$active && 0 === (int) $post_id ) {
+            return '';
+        }
+        return $title;
+    }
+
     public static function filter_document_title( $title ) {
         return self::$active && self::$active['title'] ? self::$active['title'] : $title;
     }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rivian-tire-guide",
-  "version": "1.53.0",
+  "version": "1.53.1",
   "private": true,
   "description": "Interactive tire guide for Rivian vehicles — WordPress plugin",
   "scripts": {

rivian-tire-guide.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: Rivian Tire Guide
  * Description: Interactive tire guide for Rivian vehicles with filtering, comparison, and ratings.
- * Version: 1.53.0
+ * Version: 1.53.1
  * Author: RivianTrackr
  * Text Domain: rivian-tire-guide
  * Requires at least: 5.8
@@ -14,7 +14,7 @@
     exit;
 }
 
-define( 'RTG_VERSION', '1.53.0' );
+define( 'RTG_VERSION', '1.53.1' );
 define( 'RTG_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
 define( 'RTG_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
 define( 'RTG_PLUGIN_FILE', __FILE__ );