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URLSearchParams polyfill not provided #10452

lukepass opened this issue Sep 17, 2019 · 2 comments


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commented Sep 17, 2019

Bug Report

Current Behavior
Hello, I am very new to this tool so please forgive me :)

I looked into this issue "Babel is not providing polyfill for URLSearchParams #9667" and it says that it should have been fixed while ago.

I noticed that it still doesn't polyfill URLSearchParams:

Input Code

  var params = new URLSearchParams(;
  var kind = params.get('kind');

Expected behavior/code
I expected it to be polyfilled.

Babel Configuration (.babelrc, package.json, cli command)


const presets = [
      'useBuiltIns': 'entry',
      'corejs': 3,

module.exports = {presets};


  "dependencies": {
    "@babel/polyfill": "^7.6.0",
    "autoprefixer": "^9.6.1",
    "core-js": "^3.2.1",
    "postcss-cli": "^6.1.3",
    "uglify-js": "^3.6.0",
    "uglifycss": "0.0.29"
  "devDependencies": {
    "@babel/cli": "^7.6.0",
    "@babel/core": "^7.6.0",
    "@babel/preset-env": "^7.6.0",
    "eslint": "^6.4.0",
    "eslint-config-google": "^0.14.0"
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"


last 1 version
> 0.2%
maintained node versions
not dead
ie 10


  • Babel version(s): 7.6.0 (@babel/core 7.6.0)
  • Node/npm version: 6.9.0
  • OS: Ubuntu 18.04
  • How you are using Babel: cli



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commented Sep 17, 2019

Hey @lukepass! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack community that typically always has someone willing to help. You can sign-up here for an invite."


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commented Oct 5, 2019

Hi @lukepass ,

As @babel/polyfill doced here, it is deprecated since v7.4.0, and the last verison is still using corejs@2.x.

Your problem should be fixed by using corejs v3 directly instead.

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