1 files changed, 6 insertions, 1 deletions
diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index 95ff73e2cb7..43c1226b295 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -173,13 +173,18 @@ impl Attr {
     pub fn set_value(&self, mut value: AttrValue, owner: &Element) {
         assert!(Some(owner) == self.owner().r());
         owner.will_mutate_attr();
-        mem::swap(&mut *self.value.borrow_mut(), &mut value);
+        self.swap_value(&mut value);
         if self.identifier.namespace == ns!() {
             vtable_for(owner.upcast())
                 .attribute_mutated(self, AttributeMutation::Set(Some(&value)));
         }
     }
 
+    /// Used to swap the attribute's value without triggering mutation events
+    pub fn swap_value(&self, value: &mut AttrValue) {
+        mem::swap(&mut *self.value.borrow_mut(), value);
+    }
+
     pub fn identifier(&self) -> &AttrIdentifier {
         &self.identifier
     }