Re-exporting a module compiles to 'exports.default = ...`

[alexlafroscia]

I've been doing some IE debugging and noticed a show-stopper that seems to fall into Babel's territory. I keep getting the following issue:

Expected Identifier

Which traces back to the following code:

define('qualaris-mantra/components/ember-wormhole', ['exports', 'ember-wormhole/components/ember-wormhole'], function (exports, ember_wormhole) {

    'use strict';

    exports.default = ember_wormhole.default; // Error points to this line

});

I went and looked up the ember-wormhole code that corresponds to this module, and it can be found here. In case you don't feel like following the link, it's just re-exporting another module.

Is this an issue on Babel's end? To me, it seems like the problem is that Babel translates the re-export to

exports.default = ember_wormhole.default;

instead of

exports['default'] = ember_wormhole['default'];

I looked around at all the other modules and they all seem to use the exports['default'] syntax. It's only an issue with IE, and all the other modules seem to be OK.

---

This was originally opened as an issue as an issue on Babel's repo but we determined that it's probably not an issue with Babel's core. It think it's more likely that the problem is with the transformation the the CLI uses to handle modules instead.

[stefanpenner]

confusingly this is a bug in esperanto esperantojs/esperanto#176

[alexlafroscia]

Huh, alright then! Thanks for the follow-up 😄

[stefanpenner]

ember-cli/ember-cli#4545 will fix it. I plan to release another ember-cli this afternoon.