From b0824e1626170d10275b5177b22d3694d950d3ef Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Mon, 3 Mar 2014 17:16:34 +0100
Subject: [PATCH] Prevent circular reference when checking for blend modes
 (issue 4370)

---
 src/core/evaluator.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/evaluator.js b/src/core/evaluator.js
index 2cf00d0bb..256a38ecd 100644
--- a/src/core/evaluator.js
+++ b/src/core/evaluator.js
@@ -75,7 +75,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
             continue;
           }
           var xResources = xObject.dict.get('Resources');
-          if (isDict(xResources)) {
+          // Only add the resource if it's different from the current one,
+          // otherwise we can get stuck in an infinite loop.
+          if (isDict(xResources) && xResources !== node) {
             nodes.push(xResources);
           }
         }