From 7a5886b2b8f18eaec1b858b2ecbcd9e5403fa90d Mon Sep 17 00:00:00 2001
From: Bart de Water <bartdewater@gmail.com>
Date: Mon, 23 Apr 2018 22:44:20 -0400
Subject: [PATCH] Use strict_encode64 instead of gsub newline for
 ScreenshotHelper

---
 .../system_testing/test_helpers/screenshot_helper.rb            | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/actionpack/lib/action_dispatch/system_testing/test_helpers/screenshot_helper.rb b/actionpack/lib/action_dispatch/system_testing/test_helpers/screenshot_helper.rb
index 2c8cee3a9b..d2685e0452 100644
--- a/actionpack/lib/action_dispatch/system_testing/test_helpers/screenshot_helper.rb
+++ b/actionpack/lib/action_dispatch/system_testing/test_helpers/screenshot_helper.rb
@@ -80,7 +80,7 @@ module ActionDispatch
           end
 
           def inline_base64(path)
-            Base64.encode64(path).gsub("\n", "")
+            Base64.strict_encode64(path)
           end
 
           def failed?