1 files changed, 11 insertions, 0 deletions
diff --git a/docshell/test/browser/Bug1622420Child.jsm b/docshell/test/browser/Bug1622420Child.jsm
new file mode 100644
index 0000000000..69a8f88e09
--- /dev/null
+++ b/docshell/test/browser/Bug1622420Child.jsm
@@ -0,0 +1,11 @@
+var EXPORTED_SYMBOLS = ["Bug1622420Child"];
+
+class Bug1622420Child extends JSWindowActorChild {
+  receiveMessage(msg) {
+    switch (msg.name) {
+      case "hasWindowContextForTopBC":
+        return !!this.browsingContext.top.currentWindowContext;
+    }
+    return null;
+  }
+}