From 4328ea2c1f741e13b6db3167fc8fb82298544e84 Mon Sep 17 00:00:00 2001
From: mattpass <matt@helical-levity.com>
Date: Fri, 9 Apr 2021 16:44:00 +0100
Subject: [PATCH] Add check on ^ $ and .* to avoid regex crash

---
 assets/js/icecoder.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/assets/js/icecoder.js b/assets/js/icecoder.js
index b5f1b5a..21e6fe5 100644
--- a/assets/js/icecoder.js
+++ b/assets/js/icecoder.js
@@ -2831,6 +2831,15 @@ var ICEcoder = {
     findReplace: function(find, selectNext, canActionChanges, findPrevious) {
         let replace, results, thisCM, thisSelection, rBlocks, rExpMatch0String, replaceQS, targetQS, filesQS;
 
+        // Return early if we're finding with regex and only have ^ or $ or .*, avoids CPU crash
+        if (true === parent.ICEcoder.findRegex && "" === find.replace(/\^|\$|\.\*/g, "")) {
+            results.innerHTML = "No results";
+            this.content.contentWindow.document.getElementById('resultsBar').innerHTML = "";
+            this.content.contentWindow.document.getElementById('resultsBar').style.display = "none";
+
+            return false;
+        }
+
         // Determine our find rExp, replace value and results display
         const rExp = new RegExp(true === parent.ICEcoder.findRegex ? find : ICEcoder.escapeRegex(find), "gi");
         replace		= get('replace').value;