use window global

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/wdriver.rs b/wdriver.rs
index 9de64abf4270e9221ffb1261289c170c4b8fc82a..db678d15cf34db174fbf94310acc20f057c9eee4 100644 (file)
--- a/wdriver.rs
+++ b/wdriver.rs
@@ -859,8 +859,8 @@ impl<'g> WindowGuard<'g> {
           ]).subst(r#"
             var done = arguments[0];
             if (gen >= @wanted@) { done(gen); return; }
-            gen_update_hook = function() {
-              gen_update_hook = function() { };
+            window.gen_update_hook = function() {
+              window.gen_update_hook = function() { };
               done(gen);
             };
           "#)?