From 9ca126f3cdf649afd487b80b460ca288226e0528 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20M=C3=A9tais?= <gael.metais@gmail.com>
Date: Tue, 20 Dec 2016 16:28:49 +0800
Subject: [PATCH] Add an offset to Below the fold images

---
 .../modules/lazyLoadableYLT/lazyLoadableYLT.js              | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/tools/phantomas/custom_modules/modules/lazyLoadableYLT/lazyLoadableYLT.js b/lib/tools/phantomas/custom_modules/modules/lazyLoadableYLT/lazyLoadableYLT.js
index c3cfc45..8e2f042 100644
--- a/lib/tools/phantomas/custom_modules/modules/lazyLoadableYLT/lazyLoadableYLT.js
+++ b/lib/tools/phantomas/custom_modules/modules/lazyLoadableYLT/lazyLoadableYLT.js
@@ -26,7 +26,9 @@ exports.module = function(phantomas) {
                     path,
                     processedImages = {},
                     src,
-                    viewportHeight = window.innerHeight;
+                    viewportHeight = window.innerHeight,
+                    // Add an offset of 100px under the height of the screen
+                    LAZYLOAD_OFFSET = 100;
 
                 phantomas.log('lazyLoadableImages: %d image(s) found, assuming %dpx offset to be the fold', len, viewportHeight);
 
@@ -64,7 +66,7 @@ exports.module = function(phantomas) {
                 Object.keys(processedImages).forEach(function(src) {
                     var img = processedImages[src];
 
-                    if (img.offset > viewportHeight) {
+                    if (img.offset > viewportHeight + LAZYLOAD_OFFSET) {
                         phantomas.log('lazyLoadableImages: <%s> image (%s) is below the fold (at %dpx)', src, img.path, img.offset);
 
                         phantomas.incrMetric('lazyLoadableImagesBelowTheFold');