Fix error in video embed. Closes #1687

test/automated/browser/package-lock.json

@@ -1837,8 +1837,7 @@
         "esprima": "^4.0.1",
         "estraverse": "^5.2.0",
         "esutils": "^2.0.2",
-        "optionator": "^0.8.1",
-        "source-map": "~0.6.1"
+        "optionator": "^0.8.1"
       },
       "bin": {
         "escodegen": "bin/escodegen.js",
@@ -1979,7 +1978,6 @@
       "integrity": "sha512-GDhU9ntwuKyGXdZBUgTIe+vXnWj0fppUEtMDL0+idd5Sta8TGpHssn/eusA9mrPr9qNDym6SxAYZjNvCn/9RBg==",
       "dev": true,
       "dependencies": {
-        "@types/yauzl": "^2.9.1",
         "debug": "^4.1.1",
         "get-stream": "^5.1.0",
         "yauzl": "^2.10.0"
@@ -2915,7 +2913,6 @@
         "@types/node": "*",
         "anymatch": "^3.0.3",
         "fb-watchman": "^2.0.0",
-        "fsevents": "^2.3.2",
         "graceful-fs": "^4.2.4",
         "jest-regex-util": "^27.0.6",
         "jest-serializer": "^27.0.6",