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@babel/polyfill eventLoop not current on IE10 #8975

ihet opened this Issue Nov 5, 2018 · 1 comment


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ihet commented Nov 5, 2018

My code:


Promise.resolve(true).then( ()=>{


the current result is:


but only use @babel/polyfill on IE10 the result is:


I think something wrong with microtask & macrotask on IE10

  • Babel version(s): [v7.1.2]
  • Babel Polyfill version(s): [v7.0.0]
  • Node/npm version: [Node 8.9.0/npm 5.51]
  • OS: [windows 10]
  • Browser: [Internet Explorer 10]
  • How you are using Babel: [ loader]

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babel-bot commented Nov 5, 2018

Hey @ihet! 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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