1 files changed, 6 insertions, 0 deletions
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index a951c49f80c..8c5699446ef 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -1005,6 +1005,12 @@ impl HTMLInputElement {
                     *textinput.single_line_content_mut() = "".into();
                 }
             }
+            InputType::Week => {
+                let mut textinput = self.textinput.borrow_mut();
+                if !textinput.single_line_content().is_valid_week_string() {
+                    *textinput.single_line_content_mut() = "".into();
+                }
+            }
             InputType::Color => {
                 let mut textinput = self.textinput.borrow_mut();