From 8f138bd2ea2dd6b341f40986fdfc9dc24c850d04 Mon Sep 17 00:00:00 2001
From: Daan van den Bergh <18595395+Dan0sz@users.noreply.github.com>
Date: Tue, 20 Oct 2026 11:19:40 +0200
Subject: [PATCH] Use the unfiltered home URL as the default Domain Name

Multilingual plugins like WPML (directory per language) filter home_url() to include the current language's directory (e.g. example.com/fr). That ended up in the pre-filled Domain Name, so the Plugin Token never matched the site's domain and was reported as invalid.
---
 readme.txt                        |  1 +
 src/Helpers.php                   |  6 +++++-
 tests/integration/HelpersTest.php | 23 +++++++++++++++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/readme.txt b/readme.txt
index 7fd9b18c..b77d2f18 100644
--- a/readme.txt
+++ b/readme.txt
@@ -279,6 +279,7 @@ Please make sure you make a backup of your database before updating any version
 == Changelog ==
 
 = 2.6.4 =
+* Fixed: on sites using WPML (or another multilingual plugin) with a directory per language, the Domain Name could be pre-filled with the language directory included (e.g. example.com/fr), which made the Plugin Token show as invalid.
 * Fixed: for user roles that aren't tracked (administrators by default), some integrations still loaded the tracker without initializing it, which caused a "window.plausible is not a function" error, e.g. on search results, 404 and checkout pages. They no longer load anything for those roles.
 * Fixed: events sent from the server (WooCommerce and Easy Digital Downloads add to cart, remove from cart and EDD checkout, and Contact Form 7 and Gravity Forms submissions) were also sent for user roles that aren't tracked.
 * Changed: logged-in users without a role on the site (e.g. multisite super admins visiting a subsite) are no longer tracked, as none of their roles is enabled under "Track analytics for user roles". Previously they were tracked like logged-out visitors.
diff --git a/src/Helpers.php b/src/Helpers.php
index 59778f99..3dd45303 100644
--- a/src/Helpers.php
+++ b/src/Helpers.php
@@ -332,7 +332,11 @@ public static function get_domain() {
 			return $settings['domain_name']['default'];
 		}
 
-		$url = home_url();
+		/**
+		 * Multilingual plugins (e.g. WPML in "different languages in directories" mode) filter home_url() to include the
+		 * current language's directory e.g., https://example.com/fr, so use the unfiltered value instead.
+		 */
+		$url = untrailingslashit( get_option( 'home' ) );
 
 		return preg_replace( '/^http(s?):\/\/(www\.)?/i', '', $url );
 	}
diff --git a/tests/integration/HelpersTest.php b/tests/integration/HelpersTest.php
index 0d439887..eea89a00 100644
--- a/tests/integration/HelpersTest.php
+++ b/tests/integration/HelpersTest.php
@@ -129,6 +129,29 @@ public function testGetDomain() {
 		}
 	}
 
+	/**
+	 * @see Helpers::get_domain()
+	 * @return void
+	 */
+	public function testGetDomainIgnoresLanguageDirectoryInHomeUrl() {
+		update_option( 'plausible_analytics_settings', [ 'domain_name' => [ 'default' => '' ] ] );
+
+		$filter_home = function ( $url ) {
+			return untrailingslashit( $url ) . '/fr';
+		};
+
+		add_filter( 'home_url', $filter_home );
+
+		try {
+			$expected = preg_replace( '/^http(s?):\/\/(www\.)?/i', '', untrailingslashit( get_option( 'home' ) ) );
+
+			$this->assertStringEndsWith( '/fr', home_url() );
+			$this->assertEquals( $expected, Helpers::get_domain() );
+		} finally {
+			remove_filter( 'home_url', $filter_home );
+		}
+	}
+
 	/**
 	 * @see Helpers::get_domain()
 	 * @return void