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Polyfilling Promise.allSettled does not work on Edge 18

See original GitHub issue

Describe the bug

I am polyfilling Promise.allSettled via core-js and everything is working fine on Chrome and Firefox. However, when I open my webapp on Microsoft Edge, I get an error stating that allSettled is not defined:

Object doesn't support property or method 'allSettled'

Honestly I am not even sure if this should be filed here or under the core-js repository, in case it does not belong here I will move the issue there.

Did you try recovering your dependencies?

Yarn version:

➜ yarn --version

Which terms did you search for in User Guide?

I checked the guide for polyfills, and I am polyfilling like this in my app:


import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
import 'core-js/features/promise/all-settled';


import './polyfills';
import React from 'react';
import ReactDOM from 'react-dom';


➜ npx create-react-app --info
npx: installed 91 in 11.825s

Environment Info:

    OS: macOS High Sierra 10.13.6
    CPU: (4) x64 Intel(R) Core(TM) i7-7660U CPU @ 2.50GHz
    Node: 11.7.0 - ~/.nvm/versions/node/v11.7.0/bin/node
    Yarn: 1.17.3 - /usr/local/bin/yarn
    npm: 6.5.0 - ~/.nvm/versions/node/v11.7.0/bin/npm
    Chrome: 75.0.3770.142
    Firefox: Not Found
    Safari: 12.1.2
    react: ^16.8.6 => 16.8.6
    react-dom: ^16.8.6 => 16.8.6
    react-scripts: 3.0.1 => 3.0.1
    create-react-app: Not Found

core-js version:

➜ yarn list --pattern core-js
yarn list v1.17.3
warning Resolution field "prop-types@15.7.2" is incompatible with requested version 
β”œβ”€ babel-runtime@6.26.0
β”‚  └─ core-js@2.6.3
β”œβ”€ core-js-compat@3.1.4
β”œβ”€ core-js-pure@3.1.4
β”œβ”€ core-js@3.1.4
β”œβ”€ fbjs@0.8.17
β”‚  └─ core-js@1.2.7
β”œβ”€ react-app-polyfill@1.0.1
β”‚  └─ core-js@3.0.1
β”œβ”€ recharts@1.4.3
β”‚  └─ core-js@2.5.7
└─ wait-on@3.2.0
   └─ core-js@2.6.9

react-app-polyfill version:

➜ yarn list --pattern react-app-polyfill
yarn list v1.17.3
warning Resolution field "prop-types@15.7.2" is incompatible with requested version "prop-types@~15.6.0"
└─ react-app-polyfill@1.0.1
✨  Done in 0.96s.

Steps to reproduce

  1. Install the latest core-js
  2. Polyfill Promise.allSettled from 'core-js/features/promise/all-settled';
  3. Try to call Promise.allSettled in Edge

Expected behavior

Promise.allSettled should be polyfilled (output below from Chrome):

(8)Β ["length", "name", "prototype", "all", "race", "resolve", "reject", "allSettled"]

Actual behavior

Promise.allSettled is not polyfilled (output below from Edge):

(8)Β ["prototype", "name", "reject", "resolve", "all", "race", "length"]

Reproducible demo

I could provide a repro repository if needed.

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Comments:5 (1 by maintainers)

github_iconTop GitHub Comments

gonzofishcommented, Feb 6, 2020

Same issue here, but with IE11 (so I’m sure it’s the same in Edge 18). Could this have something to do with the compat data? When I look in the debugger I don’t even see the file been bundled in

iansucommented, May 19, 2021

If this is still an issue in the current version of Edge please open a new issue.

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