diff --git a/editor/libeditor/crashtests/1274050.html b/editor/libeditor/crashtests/1274050.html
new file mode 100644
index 000000000000..dc531fba57eb
--- /dev/null
+++ b/editor/libeditor/crashtests/1274050.html
@@ -0,0 +1,11 @@
+<body>
+<table contenteditable="true"></table>
+</body>
+<script>
+window.onload = function() {
+  document.execCommand("useCSS", false, false);
+  document.designMode = 'on';
+  document.execCommand("insertunorderedlist", false);
+  document.execCommand("justifyfull", false);
+};
+</script>
diff --git a/editor/libeditor/crashtests/crashtests.list b/editor/libeditor/crashtests/crashtests.list
index 2b58d8d7fd1c..c1638f26673b 100644
--- a/editor/libeditor/crashtests/crashtests.list
+++ b/editor/libeditor/crashtests/crashtests.list
@@ -69,6 +69,7 @@ load 1158651.html
 load 1244894.xhtml
 load 1264921.html
 load 1272490.html
+load 1274050.html
 load 1317704.html
 load 1317718.html
 load 1324505.html
