message: mock canvas filter polyfill in tests
diff: "\\$webapp/i18n/languages.json": "<rootDir>/__mocks__/languages.json",
  "decoderWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
  "decoderWorker\\.min\\.wasm": "<rootDir>/__mocks__/empty.js",
  - "waveWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js"
  + "waveWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
  + "context-filter-polyfill": "<rootDir>/__mocks__/empty.js"
  },
  "transformIgnorePatterns": [
  "/node_modules/(?!matrix-js-sdk).+$"
  