Bug 1429088: Crashtest. r?bz
MozReview-Commit-ID: qJQdpdUROs
new file mode 100644
--- /dev/null
+++ b/layout/base/crashtests/1429088.html
@@ -0,0 +1,8 @@
+<!doctype html>
+<div id="host" style="display: none"></div>
+<script>
+ let shadowRoot = host.attachShadow({ mode: "open" });
+ shadowRoot.appendChild(document.createTextNode('foo'));
+ document.body.offsetTop;
+ shadowRoot.insertBefore(document.createElement('bar'), shadowRoot.firstChild);
+</script>
--- a/layout/base/crashtests/crashtests.list
+++ b/layout/base/crashtests/crashtests.list
@@ -515,8 +515,9 @@ load 1406562.html
load 1409088.html
load 1409147.html
load 1411138.html
load 1419762.html
load 1420533.html
load 1425959.html
load 1425893.html
load 1428353.html
+pref(dom.webcomponents.enabled,true) load 1429088.html
