1 files changed, 19 insertions, 0 deletions

diff --git a/layout/base/crashtests/1505420.html b/layout/base/crashtests/1505420.html
new file mode 100644
index 0000000000..c02e8f127f
--- /dev/null
+++ b/layout/base/crashtests/1505420.html
@@ -0,0 +1,19 @@
+<style>
+  *::first-letter {}
+</style>
+<li id="list">
+</li>
+<script>
+  list.offsetTop;
+  let s = document.createElement('style');
+  s.textContent = `
+    * {
+      columns: 56;
+    }
+    *::first-line { }
+  `;
+  document.documentElement.appendChild(s);
+  list.innerText = 'ó';
+  list.offsetTop;
+  list.textContent = '';
+</script>