2 files changed, 10 insertions, 0 deletions
diff --git a/components/script/dom/navigator.rs b/components/script/dom/navigator.rs
index ffbf2546a80..ee67359f859 100644
--- a/components/script/dom/navigator.rs
+++ b/components/script/dom/navigator.rs
@@ -222,6 +222,11 @@ impl NavigatorMethods<crate::DomTypeHolder> for Navigator {
         to_frozen_array(&[self.Language()], cx, retval, can_gc)
     }
 
+    /// <https://html.spec.whatwg.org/multipage/#dom-navigator-online>
+    fn OnLine(&self) -> bool {
+        true
+    }
+
     // https://html.spec.whatwg.org/multipage/#dom-navigator-plugins
     fn Plugins(&self) -> DomRoot<PluginArray> {
         self.plugins
diff --git a/components/script/dom/workernavigator.rs b/components/script/dom/workernavigator.rs
index e3a406ed4f8..0b0e90ffd0c 100644
--- a/components/script/dom/workernavigator.rs
+++ b/components/script/dom/workernavigator.rs
@@ -105,6 +105,11 @@ impl WorkerNavigatorMethods<crate::DomTypeHolder> for WorkerNavigator {
         to_frozen_array(&[self.Language()], cx, retval, can_gc)
     }
 
+    /// <https://html.spec.whatwg.org/multipage/#dom-navigator-online>
+    fn OnLine(&self) -> bool {
+        true
+    }
+
     // https://w3c.github.io/permissions/#navigator-and-workernavigator-extension
     fn Permissions(&self) -> DomRoot<Permissions> {
         self.permissions