diff --git a/includes/class-wc-https.php b/includes/class-wc-https.php
index 0e90053a585..4f490c09535 100644
--- a/includes/class-wc-https.php
+++ b/includes/class-wc-https.php
@@ -1,5 +1,4 @@
 <?php
-
 if ( ! defined( 'ABSPATH' ) ) {
 	exit; // Exit if accessed directly
 }
@@ -7,11 +6,11 @@ if ( ! defined( 'ABSPATH' ) ) {
 /**
  * WC_HTTPS class.
  *
- * @class 		WC_HTTPS
- * @version		2.2.0
- * @package		WooCommerce/Classes
- * @category	Class
- * @author 		WooThemes
+ * @class    WC_HTTPS
+ * @version  2.2.0
+ * @package  WooCommerce/Classes
+ * @category Class
+ * @author   WooThemes
  */
 class WC_HTTPS {
 
@@ -21,17 +20,29 @@ class WC_HTTPS {
 	public static function init() {
 		if ( 'yes' == get_option( 'woocommerce_force_ssl_checkout' ) ) {
 			if ( ! is_admin() || ( defined( 'DOING_AJAX' ) && in_array( $_REQUEST['action'], array( 'woocommerce_get_refreshed_fragments', 'woocommerce_checkout', 'woocommerce_update_order_review', 'woocommerce_update_shipping_method', 'woocommerce_apply_coupon' ) ) ) ) {
+
 				// HTTPS urls with SSL on
-				$filters = array( 'post_thumbnail_html', 'wp_get_attachment_url', 'wp_get_attachment_image_attributes', 'wp_get_attachment_url', 'option_stylesheet_url', 'option_template_url', 'script_loader_src', 'style_loader_src', 'template_directory_uri', 'stylesheet_directory_uri', 'site_url' );
+				$filters = array(
+					'post_thumbnail_html',
+					'wp_get_attachment_image_attributes',
+					'wp_get_attachment_url',
+					'option_stylesheet_url',
+					'option_template_url',
+					'script_loader_src',
+					'style_loader_src',
+					'template_directory_uri',
+					'stylesheet_directory_uri',
+					'site_url'
+				);
 
 				foreach ( $filters as $filter ) {
-					add_filter( $filter, array( __CLASS__, 'force_https_url' ) );
+					add_filter( $filter, array( __CLASS__, 'force_https_url' ), 999 );
 				}
-				
+
 				add_filter( 'page_link', array( __CLASS__, 'force_https_page_link' ), 10, 2 );
 				add_action( 'template_redirect', array( __CLASS__, 'force_https_template_redirect' ) );
 
-				if ( get_option('woocommerce_unforce_ssl_checkout') == 'yes' ) {
+				if ( 'yes' == get_option('woocommerce_unforce_ssl_checkout') ) {
 					add_action( 'template_redirect', array( __CLASS__, 'unforce_https_template_redirect' ) );
 				}
 			}
@@ -46,10 +57,11 @@ class WC_HTTPS {
 	 */
 	public static function force_https_url( $content ) {
 		if ( is_ssl() ) {
-			if ( is_array( $content ) )
+			if ( is_array( $content ) ) {
 				$content = array_map( 'WC_HTTPS::force_https_url', $content );
-			else
+			} else {
 				$content = str_replace( 'http:', 'https:', $content );
+			}
 		}
 		return $content;
 	}