new file mode 100644
--- /dev/null
+++ b/dom/animation/test/crashtests/1400022-1.html
@@ -0,0 +1,10 @@
+<script>
+requestIdleCallback(function(){ location.reload() })
+a = document.createElement("x")
+document.documentElement.appendChild(a)
+b = document.createElement('link')
+b.setAttribute('rel', 'stylesheet')
+b.setAttribute('href', 'data:,*{border-block-start:solid}')
+document.head.appendChild(b)
+a.insertAdjacentHTML("afterBegin", "<d id='id0' style='transition-duration:1s'><svg filter='url(#id0)'>")
+</script>

--- a/dom/animation/test/crashtests/crashtests.list
+++ b/dom/animation/test/crashtests/crashtests.list
@@ -27,8 +27,9 @@ pref(dom.animations-api.core.enabled,tru
 pref(dom.animations-api.core.enabled,true) load 1334582-2.html
 pref(dom.animations-api.core.enabled,true) load 1334583-1.html
 pref(dom.animations-api.core.enabled,true) load 1335998-1.html
 pref(dom.animations-api.core.enabled,true) load 1343589-1.html
 pref(dom.animations-api.core.enabled,true) load 1359658-1.html
 pref(dom.animations-api.core.enabled,true) load 1373712-1.html
 pref(dom.animations-api.core.enabled,true) load 1379606-1.html
 pref(dom.animations-api.core.enabled,true) load 1393605-1.html
+load 1400022-1.html