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-rw-r--r--layout/style/crashtests/1639533.html15
1 files changed, 15 insertions, 0 deletions
diff --git a/layout/style/crashtests/1639533.html b/layout/style/crashtests/1639533.html
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--- /dev/null
+++ b/layout/style/crashtests/1639533.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<style>
+.tweak ::-moz-range-thumb:is(:hover) {
+ background: red;
+}
+</style>
+<div>
+ <input type=range>
+</div>
+<script>
+ onload = function() {
+ document.querySelector("div").getBoundingClientRect();
+ document.querySelector("div").classList.add("tweak");
+ }
+</script>