diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index c983e499cd11..4090e4497179 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -323728,13 +323728,13 @@
      }
     ]
    ],
-   "budget-api/interfaces.any.js": [
+   "budget-api/idlharness.https.any.js": [
     [
-     "/budget-api/interfaces.any.html",
+     "/budget-api/idlharness.https.any.html",
      {}
     ],
     [
-     "/budget-api/interfaces.any.worker.html",
+     "/budget-api/idlharness.https.any.worker.html",
      {}
     ]
    ],
@@ -432575,8 +432575,8 @@
    "6cc0000f6ff7547e1b1bc635cbd0cabf0754675a",
    "support"
   ],
-  "budget-api/interfaces.any.js": [
-   "5a87b3f8a2f42627063cfbb9a79e8b0cd63d63e8",
+  "budget-api/idlharness.https.any.js": [
+   "335c7a60a4dc8daecd3a2b28b86438698ac06484",
    "testharness"
   ],
   "check_stability.ini": [
diff --git a/testing/web-platform/tests/budget-api/idlharness.https.any.js b/testing/web-platform/tests/budget-api/idlharness.https.any.js
new file mode 100644
index 000000000000..335c7a60a4dc
--- /dev/null
+++ b/testing/web-platform/tests/budget-api/idlharness.https.any.js
@@ -0,0 +1,24 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+
+'use strict';
+
+// See https://wicg.github.io/budget-api/
+
+idl_test(
+  ['budget-api'],
+  ['html'],
+  async idl_array => {
+    idl_array.add_objects({ BudgetService: ['navigator.budget'] });
+    if (self.Window) {
+      idl_array.add_objects({ Navigator: ['navigator'] });
+    } else {
+      idl_array.add_objects({ WorkerNavigator: ['navigator'] });
+    }
+    const budgetStates = await navigator.budget.getBudget();
+    if (budgetStates.length) {
+      self.budgetState = budgetStates[0];
+      idl_array.add_objects({ BudgetState: ['budgetState'] });
+    }
+  }
+);
diff --git a/testing/web-platform/tests/budget-api/interfaces.any.js b/testing/web-platform/tests/budget-api/interfaces.any.js
deleted file mode 100644
index 5a87b3f8a2f4..000000000000
--- a/testing/web-platform/tests/budget-api/interfaces.any.js
+++ /dev/null
@@ -1,19 +0,0 @@
-// META: script=/resources/WebIDLParser.js
-// META: script=/resources/idlharness.js
-
-'use strict';
-
-// See https://wicg.github.io/budget-api/
-
-promise_test(async () => {
-  const html = await fetch('/interfaces/html.idl').then(r => r.text());
-  const workers = await fetch('/interfaces/dedicated-workers.idl').then(r => r.text());
-  const idl = await fetch('/interfaces/budget-api.idl').then(r => r.text());
-
-  const idlArray = new IdlArray();
-  idlArray.add_idls(idl);
-  idlArray.add_dependency_idls(html);
-  idlArray.add_dependency_idls(workers);
-  idlArray.test();
-  done();
-}, 'budget-api interfaces.');