diff --git a/components/script/dom/htmlmetaelement.rs b/components/script/dom/htmlmetaelement.rs
index e94a5e1ff33..d1bfffa6609 100644
--- a/components/script/dom/htmlmetaelement.rs
+++ b/components/script/dom/htmlmetaelement.rs
@@ -61,6 +61,9 @@ impl HTMLMetaElement {
             if name == "referrer" {
                 self.apply_referrer();
             }
+            if name == "viewport" {
+                self.parse_viewport();
+            }
         // https://html.spec.whatwg.org/multipage/#attr-meta-http-equiv
         } else if !self.HttpEquiv().is_empty() {
             // TODO: Implement additional http-equiv candidates
@@ -115,6 +118,11 @@ impl HTMLMetaElement {
         }
     }
 
+    /// <https://drafts.csswg.org/css-viewport/#parsing-algorithm>
+    fn parse_viewport(&self) {
+        let _element = self.upcast::<Element>();
+    }
+
     /// <https://html.spec.whatwg.org/multipage/#attr-meta-http-equiv-content-security-policy>
     fn apply_csp_list(&self) {
         if let Some(parent) = self.upcast::<Node>().GetParentElement() {