IE Syntax error on minified code evaluation

[attatrol]

Bug Report

Current Behavior
IE 11.0.14393.0 returns error Syntax error in regular exception when i try to copy the minified code in its console.

Input Code
REPL link

var regexpUnicodeSupport;
function test() { 
try { new RegExp("\uffff", "u"); regexpUnicodeSupport = true; }
  catch(e) {}
}

Expected behavior/code
Successful evaluation.

Babel Configuration
default minify preset used by REPL

Environment
REPL

[babel-bot]

Hey @attatrol! 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.

[nicolo-ribaudo]

I'm moving this issue to the minifier repo.

@babel-bot Move to babel/minify

[babel-bot]

Hey @attatrol! I've moved your issue to the correct repository. Please make sure to keep an eye on the new issue for the latest information.