From cf96c3bcac4301b069b66c7b240687ca00bd68c7 Mon Sep 17 00:00:00 2001
From: Jeremy Lowrey <jlowrey@ciena.com>
Date: Mon, 25 Nov 2019 15:04:59 -0800
Subject: [PATCH] Check for config.observeMutations at runtime for cases when
 mutation isn't ready and runs to an out of memory error.

---
 js-packages/@fortawesome/fontawesome-svg-core/index.es.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/js-packages/@fortawesome/fontawesome-svg-core/index.es.js b/js-packages/@fortawesome/fontawesome-svg-core/index.es.js
index 645f8e2dd4..5281231627 100644
--- a/js-packages/@fortawesome/fontawesome-svg-core/index.es.js
+++ b/js-packages/@fortawesome/fontawesome-svg-core/index.es.js
@@ -1417,6 +1417,9 @@ function observe(options) {
       observeMutationsRoot = _options$observeMutat === void 0 ? DOCUMENT : _options$observeMutat;
   mo = new MUTATION_OBSERVER(function (objects) {
     if (disabled) return;
+    if (!config.observeMutations) {
+      return;
+    }
     toArray(objects).forEach(function (mutationRecord) {
       if (mutationRecord.type === 'childList' && mutationRecord.addedNodes.length > 0 && !isWatched(mutationRecord.addedNodes[0])) {
         if (config.searchPseudoElements) {