diff --git a/components/script/dom/htmlscriptelement.rs b/components/script/dom/htmlscriptelement.rs
index 421ff11d189..b3005b181da 100644
--- a/components/script/dom/htmlscriptelement.rs
+++ b/components/script/dom/htmlscriptelement.rs
@@ -70,6 +70,7 @@ use crate::dom::performanceresourcetiming::InitiatorType;
 use crate::dom::trustedscript::TrustedScript;
 use crate::dom::trustedscripturl::TrustedScriptURL;
 use crate::dom::virtualmethods::VirtualMethods;
+use crate::dom::window::Window;
 use crate::fetch::create_a_potential_cors_request;
 use crate::network_listener::{self, NetworkListener, PreInvoke, ResourceTimingListener};
 use crate::realms::enter_realm;
@@ -1526,6 +1527,13 @@ impl HTMLScriptElementMethods<crate::DomTypeHolder> for HTMLScriptElement {
             .SetTextContent(Some(DOMString::from(value)), can_gc);
         Ok(())
     }
+
+    /// <https://html.spec.whatwg.org/multipage/#dom-script-supports>
+    fn Supports(_window: &Window, type_: DOMString) -> bool {
+        // The type argument has to exactly match these values,
+        // we do not perform an ASCII case-insensitive match.
+        matches!(type_.str(), "classic" | "module" | "importmap")
+    }
 }
 
 #[derive(Clone, Copy)]
diff --git a/components/script_bindings/webidls/HTMLScriptElement.webidl b/components/script_bindings/webidls/HTMLScriptElement.webidl
index 2c7b398b7e3..a21ae6007c4 100644
--- a/components/script_bindings/webidls/HTMLScriptElement.webidl
+++ b/components/script_bindings/webidls/HTMLScriptElement.webidl
@@ -32,6 +32,8 @@ interface HTMLScriptElement : HTMLElement {
   [CEReactions]
            attribute DOMString referrerPolicy;
 
+  static boolean supports(DOMString type);
+
   // also has obsolete members
 };
 
diff --git a/tests/wpt/meta/html/dom/idlharness.https.html.ini b/tests/wpt/meta/html/dom/idlharness.https.html.ini
index b2ea5b118c1..ed387df6221 100644
--- a/tests/wpt/meta/html/dom/idlharness.https.html.ini
+++ b/tests/wpt/meta/html/dom/idlharness.https.html.ini
@@ -6913,18 +6913,12 @@
   [HTMLScriptElement interface: attribute fetchPriority]
     expected: FAIL
 
-  [HTMLScriptElement interface: operation supports(DOMString)]
-    expected: FAIL
-
   [HTMLScriptElement interface: document.createElement("script") must inherit property "blocking" with the proper type]
     expected: FAIL
 
   [HTMLScriptElement interface: document.createElement("script") must inherit property "fetchPriority" with the proper type]
     expected: FAIL
 
-  [HTMLScriptElement interface: calling supports(DOMString) on document.createElement("script") with too few arguments must throw TypeError]
-    expected: FAIL
-
   [HTMLMarqueeElement interface: existence and properties of interface object]
     expected: FAIL
 
diff --git a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/script-supports.html.ini b/tests/wpt/meta/html/semantics/scripting-1/the-script-element/script-supports.html.ini
deleted file mode 100644
index 6a60c3497ed..00000000000
--- a/tests/wpt/meta/html/semantics/scripting-1/the-script-element/script-supports.html.ini
+++ /dev/null
@@ -1,15 +0,0 @@
-[script-supports.html]
-  [Type of HTMLScriptElement.supports is function]
-    expected: FAIL
-
-  [HTMLScriptElement.supports resurns true for 'classic']
-    expected: FAIL
-
-  [HTMLScriptElement.supports resurns true for 'module']
-    expected: FAIL
-
-  [HTMLScriptElement.supports returns false for JavaScript MIME types]
-    expected: FAIL
-
-  [HTMLScriptElement.supports returns false for unsupported types]
-    expected: FAIL