Basic configuration to minify and mangle produces completely broken JS

[doug-ross]

Bug Report

The following command...

node_modules.bin\babel _display.js _plan_ab.js _plan_en.js _p_cover.js _reco_sl.js _tdata.js _tid_dec.js _v_mm.js _v_name.js --no-comments >..\lib\nlpbndl3.js

...using a config as follows (babel.config.json)

		{
		  "presets": [["minify", {
			"mangle": {
			  "exclude": ["MyCustomError"]
			},
			"keepFnName": false
		  }]]
		}	

Produces a single JS file that appears "right".

However, Chrome can't load the JS file and just hangs.

I know this bug report is incomplete (as I can't upload all of my code), but wondering if anyone else has experienced this issue.

[babel-bot]

Hey @doug-ross! 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."

[hzoo]

Thanks for the issue! Yeah I think we wouldn't really be able to help here since there's no error message. (minify bugs are certainly difficult to debug in general though so it's understandable). I would note that we don't really consider using babel as a bundler (concating files), would recommend you use something like webpack/parcel/rollup/etc to that task. This repo is for Babel itself, not the minify preset, so moving the issue https://github.com/babel/minify