From 0314bd802537950d210f07731c260c619fd41518 Mon Sep 17 00:00:00 2001
From: Kristiyan Kostadinov <crisbeto@users.noreply.github.com>
Date: Fri, 28 Jul 2017 17:59:33 +0300
Subject: [PATCH] fix(checkbox): server-side rendering error when checking
 textContent (#5470)

Adds an extra null check when trimming the checkbox `textContent`. This avoids issues in Universal where the `textContent` will be undefined.

Fixes #5453.
---
 src/lib/checkbox/checkbox.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/checkbox/checkbox.html b/src/lib/checkbox/checkbox.html
index 78090d6208b5..cece0500866c 100644
--- a/src/lib/checkbox/checkbox.html
+++ b/src/lib/checkbox/checkbox.html
@@ -1,6 +1,6 @@
 <label [attr.for]="inputId" class="mat-checkbox-layout" #label>
   <div class="mat-checkbox-inner-container"
-       [class.mat-checkbox-inner-container-no-side-margin]="!checkboxLabel.textContent.trim()">
+       [class.mat-checkbox-inner-container-no-side-margin]="!checkboxLabel.textContent || !checkboxLabel.textContent.trim()">
     <input #input
            class="mat-checkbox-input cdk-visually-hidden" type="checkbox"
            [id]="inputId"