diff --git a/package.json b/package.json
index 82d78d3310..9016336c01 100644
--- a/package.json
+++ b/package.json
@@ -153,7 +153,7 @@
   "jest": {
     "testEnvironment": "jest-environment-jsdom-sixteen",
     "testMatch": [
-      "<rootDir>/test/**/*-test.js"
+      "<rootDir>/test/**/*-test.[tj]s"
     ],
     "setupFilesAfterEnv": [
       "<rootDir>/node_modules/matrix-react-sdk/test/setupTests.js"
diff --git a/src/@types/global.d.ts b/src/@types/global.d.ts
index 805639310e..521150648a 100644
--- a/src/@types/global.d.ts
+++ b/src/@types/global.d.ts
@@ -35,11 +35,6 @@ type ElectronChannel =
 
 declare global {
     interface Window {
-        Modernizr: ModernizrAPI & FeatureDetects;
-        Olm: {
-            init: () => Promise<void>;
-        };
-
         mxSendRageshake: (text: string, withLogs?: boolean) => void;
         matrixChat: ReturnType<Renderer>;
 
diff --git a/test/unit-tests/url_utils-test.ts b/test/unit-tests/url_utils-test.ts
index 1d5a4d29f7..784dde2d1c 100644
--- a/test/unit-tests/url_utils-test.ts
+++ b/test/unit-tests/url_utils-test.ts
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import {parseQsFromFragment, parseQs} from "../../src/vector/url_utils";
+import { parseQsFromFragment, parseQs } from "../../src/vector/url_utils";
 
 describe("url_utils.ts", function() {
     // @ts-ignore
@@ -39,4 +39,12 @@ describe("url_utils.ts", function() {
             "foo": "bar",
         });
     });
+
+    describe("parseQs with arrays", function() {
+        location.search = "?via=s1&via=s2&via=s2&foo=bar";
+        expect(parseQs(location)).toEqual({
+            "via": ["s1", "s2", "s2"],
+            "foo": "bar",
+        });
+    });
 });