Fix #84: separate internal-rules from other skip_tracking rules (#86)

Changed the rules for appending JS snippet to avoid caching problems.

CHANGELOG.md

@@ -3,7 +3,8 @@ All notable changes to this project will be documented in this file. This projec
 
 ## unreleased
 * Scaled datapoint size to number of records in dashboard widget to improve legibility 
-* Added JS source maps to avoid warnings with developer tools 
+* Added JS source maps to avoid warnings with developer tools
+* Add JS snippet to output even if tracking is skipped to avoid caching problems
 
 ## 1.6.0
 * Added hook statify__visit_saved which is fired after a visit was stored in the database.

inc/statify_frontend.class.php

@@ -145,11 +145,22 @@ private static function _skip_tracking() {
 		}
 
 		/** Skip tracking via Referrer check and Conditional_Tags. */
-		return ( self::check_referrer() || is_feed() || is_trackback() || is_robots()
-				 || is_preview() || is_user_logged_in() || is_404() || is_search()
+		return ( self::check_referrer() || is_trackback() || is_robots() || is_user_logged_in()
+			|| self::_is_internal()
 		);
 	}
 
+	/**
+	 * Rules to detect internal calls to skip tracking and not print code snippet.
+	 *
+	 * @since    1.7.0
+	 *
+	 * @return   boolean  $skip_hook  TRUE if NO tracking is desired
+	 */
+	private static function _is_internal() {
+		return is_feed() || is_preview() || is_404() || is_search();
+	}
+
 	/**
 	 * Compare the referrer url to the blacklist data.
 	 * De/activate this feature via settings in the Dashboard widget.
@@ -264,8 +275,8 @@ public static function wp_footer() {
 			return;
 		}
 
-		/* Skip by rules */
-		if ( self::_skip_tracking() ) {
+		/* Skip by internal rules (#84) */
+		if ( self::_is_internal() ) {
 			return;
 		}