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-rw-r--r--testing/web-platform/tests/css/css-fonts/crash-large-grapheme-cluster.html14
1 files changed, 14 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-fonts/crash-large-grapheme-cluster.html b/testing/web-platform/tests/css/css-fonts/crash-large-grapheme-cluster.html
new file mode 100644
index 0000000000..c1238e6f35
--- /dev/null
+++ b/testing/web-platform/tests/css/css-fonts/crash-large-grapheme-cluster.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Should not crash when there is an exceedingly large grapheme cluster</title>
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1255482">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="target"></div>
+<script>
+test(() => {
+ target.textContent = 'e' + '\u0301'.repeat(35000) + 'X';
+ target.offsetWidth;
+});
+</script>