diff --git a/wp-includes/interactivity-api/class-wp-interactivity-api.php b/wp-includes/interactivity-api/class-wp-interactivity-api.php
index 106055f6ff..b4cc86566d 100644
--- a/wp-includes/interactivity-api/class-wp-interactivity-api.php
+++ b/wp-includes/interactivity-api/class-wp-interactivity-api.php
@@ -1314,6 +1314,14 @@ HTML;
 		if ( 'enter' === $mode && ! $this->has_processed_router_region ) {
 			$this->has_processed_router_region = true;
 
+			// Initializes the `state.url` property from the server.
+			$this->state(
+				'core/router',
+				array(
+					'url' => get_self_link(),
+				)
+			);
+
 			// Enqueues as an inline style.
 			wp_register_style( 'wp-interactivity-router-animations', false );
 			wp_add_inline_style( 'wp-interactivity-router-animations', $this->get_router_animation_styles() );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 843831db61..4dd5c55e30 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.0-alpha-61658';
+$wp_version = '7.0-alpha-61659';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.