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-rw-r--r--testing/web-platform/tests/html/semantics/forms/constraints/number-input-lang-validationMessage-crash.html15
1 files changed, 15 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/forms/constraints/number-input-lang-validationMessage-crash.html b/testing/web-platform/tests/html/semantics/forms/constraints/number-input-lang-validationMessage-crash.html
new file mode 100644
index 0000000000..7affb1d65b
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/forms/constraints/number-input-lang-validationMessage-crash.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>Should not assert or crash</title>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1649569">
+<script>
+window.onload = () => {
+ var a = document.getElementById("a")
+ var c = document.createElement("m")
+ a.valueAsNumber = 0.165
+ c.insertBefore(b, c.childNodes[0])
+ a.validationMessage
+}
+</script>
+<pre lang="nb">
+<form id="b">
+<input id="a" type="number">