1 files changed, 25 insertions, 0 deletions
diff --git a/dom/base/crashtests/1712198.html b/dom/base/crashtests/1712198.html
new file mode 100644
index 0000000000..c65c171ab6
--- /dev/null
+++ b/dom/base/crashtests/1712198.html
@@ -0,0 +1,25 @@
+<html class="reftest-wait">
+<script>
+let pp;
+window.addEventListener("MozReftestInvalidate", finish);
+document.addEventListener('DOMContentLoaded', () => {
+  let a = document.documentElement
+  pp = SpecialPowers.wrap(self).printPreview();
+  pp.document.adoptNode(a)
+  let b = document.createElementNS('http://www.w3.org/1999/xhtml', 'optgroup')
+  a.appendChild(b)
+  b.focus({ })
+});
+function finish() {
+  setTimeout(function () {
+  	try { pp.close(); } catch (e) { }
+  	document.documentElement.className = "";
+  }, 0);
+}
+// we don't get a MozReftestInvalidate event because the reftest-wait class
+// on the document element can't be seen by the reftest harness because the
+// documentElement gets removed from the document, so we use onbeforeunload to
+// close the window.
+onbeforeunload = finish;
+</script>
+</html>