Babel.io website doesn't work in IE11

[mrhuttner]

Bug Report

Home page, demo of code load error in IE
https://babeljs.io/
Object doesn't support property or method 'transform'

Also https://babeljs.io/repl
Never loads.

• I would like to work on a fix!

Current behavior
IE11 on https://babeljs.io/
Object doesn't support property or method 'transform'

qi=Symbol.for("var used to be block scoped")
'Symbol' is undefined

IE11 on https://babeljs.io/repl
Never loads.

Input Code
https://babeljs.io/

Expected behavior
No errors and page should load

Babel Configuration (babel.config.js, .babelrc, package.json#babel, cli command, .eslintrc)
https://babeljs.io/

Environment
https://babeljs.io/

Possible Solution

Additional context

[babel-bot]

Hey @mrhuttner! 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."

[babel-bot]

Hey @mrhuttner! 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.

[JLHwung]

See also #1627