From e41748a436857516d7437cdbb14a3781f7395510 Mon Sep 17 00:00:00 2001
From: Konrad Kwiatkowski <ciachowski2@gmail.com>
Date: Wed, 19 Oct 2016 20:26:50 +0200
Subject: [PATCH] Nested white space text nodes trimming fix

---
 src/clamp.js | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/clamp.js b/src/clamp.js
index 2bc9586..b79b2bf 100644
--- a/src/clamp.js
+++ b/src/clamp.js
@@ -135,9 +135,26 @@
       if (elem.lastChild.children && elem.lastChild.children.length > 0) {
         return getLastChild(Array.prototype.slice.call(elem.children).pop());
       }
-      //This is the absolute last child, a text node, but something's wrong with it. Nest into it and keep trying
+      //Handle scenario where the last child is white-space node
       else if (!elem.lastChild || !elem.lastChild.nodeValue || elem.lastChild.nodeValue === '' || elem.lastChild.nodeValue == opt.truncationChar) {
-        return getLastChild(element.lastChild);
+        var sibling = elem.lastChild;
+        do {
+          if (!sibling) {
+            return;
+          }
+          //TEXT_NODE
+          if (sibling.nodeType === 3 && ['', opt.truncationChar].indexOf(sibling.nodeValue) === -1) {
+            return sibling;
+          }
+          if (sibling.lastChild) {
+            var lastChild = getLastChild(sibling);
+            if (lastChild) {
+              return lastChild;
+            }
+          }
+          //Current sibling is pretty useless
+          sibling.parentNode.removeChild(sibling);
+        } while (sibling = sibling.previousSibling);
       }
       //This is the last child we want, return it
       else {