[bug] Importing the WebComponents.js Custom Elements v1 polyfill from NPM breaks app?

[trusktr]

The only lines in the app are

import 'webcomponents.js/src/CustomElements/v1/native-shim'
import 'webcomponents.js/src/CustomElements/v1/CustomElements'

which results in a familiar yet unhelpful error:

   While computing assigned variables:
   node_modules/webcomponents.js/src/CustomElements/v1/native-shim.js: Unexpected token (30:17)

Reproduction:

git clone git@github.com:trusktr/meteor --branch issue-7738 --single-branch
cd meteor
./run-dev.sh

Note, I'm getting the webcomponents.js package from GitHub (see package.json).

[trusktr]

Opened reciprocal issue in webcomponents: webcomponents/webcomponentsjs#608

[WebReflection]

Why is my polyfill mentioned when the example imports webcomponents.js which is not my polyfill?

Has this bug anything to do at all with my polyfill?

[WebReflection]

@trusktr can you please change ASAP this title which blames for no reason my library? thank you

[WebReflection]

can anyone please update this ticket, changing the title to start with?

[trusktr]

@WebReflection Hi Andrea, I fixed the title. My mistake. (You can unsubscribe from this one if you want)

[trusktr]

The error was fixed, and the polyfill has been moved to a new repo, so the following lines now work:

import '@webcomponents/custom-elements/src/native-shim'
import '@webcomponents/custom-elements/src/custom-elements'

customElements.define('my-el', class MyEl extends HTMLElement {})