Sentry.init() is throwing an error evaluating 'sandbox.hidden = true'

[a-polishchuk]

OS:

• Windows
• MacOS
• Linux

Platform:

• iOS
• Android

SDK:

• @sentry/react-native
• react-native-sentry

SDK version: 1.3.1
react-native version: 0.61.4

Init Code:

Sentry.init({
  dsn: 'https://...@sentry.io/...'
});

---

I have following issue:
Sentry.init() function is throwing an error "TypeError: null is not an object (evaluating 'sandbox.hidden = true')

[seamereth]

Just came here to post this. I'm getting the exact same error! Only solution is to comment out the init line, which is obviously not ideal if you want to use Sentry...

[HazAT]

Are you using any request libraries?
This error should only pop up if you are polyfilling fetch.

[a-polishchuk]

hm, I'm not sure, actually. I'm using some of the expo modules. This is my babel.config.js
module.exports = function(api) { api.cache(true); return { presets: ["babel-preset-expo"] }; };

[bill-pairaktaridis]

Also chance of getting this for sentry-expo as well?

[bill-pairaktaridis]

@HazAT where can we look to see if we're somehow polyfilling fetch?

This is my package.json

{
  "name": "Nimber",
  "main": "node_modules/expo/AppEntry.js",
  "private": true,
  "scripts": {
    "start": "expo start",
    "android": "expo start --android",
    "ios": "expo start --ios",
    "eject": "expo eject",
    "test": "jest"
  },
  "jest": {
    "preset": "jest-expo",
    "transformIgnorePatterns": [
      "node_modules/(?!(jest-)?react-native|react-clone-referenced-element|@react-native-community|expo(nent)?|@expo(nent)?/.*|react-navigation|@react-navigation/.*|@unimodules/.*|sentry-expo|native-base)"
    ]
  },
  "dependencies": {
    "@expo/samples": "2.1.1",
    "@expo/vector-icons": "^10.0.0",
    "@react-native-community/async-storage": "^1.7.1",
    "@react-native-community/datetimepicker": "2.1.0",
    "@react-native-community/netinfo": "4.6.0",
    "@react-navigation/native-stack": "^5.0.1",
    "@sentry/browser": "^5.12.4",
    "@sentry/react-native": "^1.3.3",
    "braces": "^3.0.2",
    "core-js": "^3.1.3",
    "country-telephone-data": "^0.6.0",
    "expo": "^36.0.0",
    "expo-analytics": "^1.0.11",
    "expo-constants": "~8.0.0",
    "expo-facebook": "~8.0.0",
    "expo-file-system": "~8.0.0",
    "expo-gl": "~8.0.0",
    "expo-image-manipulator": "~8.0.0",
    "expo-image-picker": "~8.0.1",
    "expo-intent-launcher": "~8.0.0",
    "expo-localization": "~8.0.0",
    "expo-location": "~8.0.0",
    "expo-media-library": "~8.0.0",
    "expo-permissions": "~8.0.0",
    "expo-pixi": "^1.2.0",
    "expo-print": "~8.0.0",
    "expo-sms": "~8.0.0",
    "expo-task-manager": "~8.0.0",
    "expo-web-browser": "~8.0.0",
    "expokit": "32.0.2",
    "geolib": "^3.0.3",
    "i18n-js": "^3.1.0",
    "libphonenumber-js": "^1.7.23",
    "lodash.debounce": "^4.0.8",
    "moment": "^2.22.2",
    "prop-types": "^15.6.2",
    "react": "16.9.0",
    "react-dom": "16.9.0",
    "react-native": "https://github.com/expo/react-native/archive/sdk-36.0.1.tar.gz",
    "react-native-app-link": "^1.0.0",
    "react-native-elements": "^0.19.1",
    "react-native-gesture-handler": "~1.5.0",
    "react-native-hyperlink": "0.0.14",
    "react-native-looped-carousel": "^0.1.13",
    "react-native-maps": "0.26.1",
    "react-native-maps-directions": "^1.7.3",
    "react-native-reanimated": "~1.4.0",
    "react-native-safe-area-context": "0.6.0",
    "react-native-screens": "2.0.0-alpha.12",
    "react-native-signature-canvas": "^1.6.0",
    "react-native-signature-pad": "^0.1.0",
    "react-native-svg": "9.13.3",
    "react-native-svg-animated-linear-gradient": "^0.1.9",
    "react-native-swipe-verify": "^0.1.6",
    "react-native-vector-icons": "^6.6.0",
    "react-native-view-shot": "3.0.2",
    "react-native-webview": "7.4.3",
    "react-navigation": "^4.1.1",
    "react-navigation-drawer": "^2.3.4",
    "react-navigation-stack": "^1.10.3",
    "react-navigation-tabs": "^2.7.0",
    "react-redux": "^5.1.1",
    "redux": "^4.0.4",
    "redux-persist": "^5.10.0",
    "redux-sentry-middleware": "^0.1.1",
    "sentry-expo": "^2.0.1",
    "tiny-emitter": "^2.1.0",
    "ws": "^7.0.0"
  },
  "devDependencies": {
    "@babel/cli": "^7.4.4",
    "@babel/core": "^7.4.5",
    "@babel/plugin-proposal-class-properties": "^7.8.3",
    "@babel/preset-flow": "^7.0.0",
    "babel-plugin-transform-remove-console": "^6.9.4",
    "eslint": "^6.0.1",
    "eslint-plugin-react": "^7.14.2",
    "flow-bin": "^0.89.0",
    "jest-expo": "^36.0.0",
    "metro-react-native-babel-preset": "^0.54.1",
    "react-test-renderer": "^16.11.0"
  }
}

UPDATE: Looks like I was able to resolve it by removing ws, "@sentry/browser", "@sentry/react-native", braces and core-js

UPDATE 2: On further inspection I'm seeing that this is failing to a warning now, since the fix was probably deployed to NPM. Would still like to know what's causing/caused it