1 files changed, 18 insertions, 1 deletions
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 3c7df12b633..b8e3531508e 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -10,7 +10,7 @@ use std::default::Default;
 use std::ops::Range;
 use std::slice::from_ref;
 use std::sync::Arc as StdArc;
-use std::{cmp, iter};
+use std::{cmp, fmt, iter};
 
 use app_units::Au;
 use base::id::{BrowsingContextId, PipelineId};
@@ -168,6 +168,23 @@ pub struct Node {
     layout_data: DomRefCell<Option<Box<GenericLayoutData>>>,
 }
 
+impl fmt::Debug for Node {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        if matches!(self.type_id(), NodeTypeId::Element(_)) {
+            let el = self.downcast::<Element>().unwrap();
+            el.fmt(f)
+        } else {
+            write!(f, "[Node({:?})]", self.type_id())
+        }
+    }
+}
+
+impl fmt::Debug for DomRoot<Node> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        (**self).fmt(f)
+    }
+}
+
 /// Flags for node items
 #[derive(Clone, Copy, JSTraceable, MallocSizeOf)]
 pub struct NodeFlags(u16);