Merge pull request #15402 from vector-im/t3chguy/fix/10353

Update Jest and JSDOM

package.json

@@ -114,8 +114,8 @@
     "file-loader": "^5.0.2",
     "fs-extra": "^0.30.0",
     "html-webpack-plugin": "^3.2.0",
-    "jest": "^24.9.0",
-    "jest-environment-jsdom-fourteen": "^1.0.1",
+    "jest": "^26.5.2",
+    "jest-environment-jsdom-sixteen": "^1.0.3",
     "json-loader": "^0.5.3",
     "loader-utils": "^1.2.3",
     "matrix-mock-request": "^1.2.3",
@@ -147,7 +147,7 @@
     "webpack-dev-server": "^3.9.0"
   },
   "jest": {
-    "testEnvironment": "jest-environment-jsdom-fourteen",
+    "testEnvironment": "jest-environment-jsdom-sixteen",
     "testMatch": [
       "<rootDir>/test/**/*-test.js"
     ],