(WebPack) Browser Runtime Exception When Running In Production Mode

[ISNIT0]

(Really loving Sapper, etc.)

package.json:

When building and running in production mode:

NODE_ENV=production npm run build && NODE_ENV=production node server.js

I get an exception thrown on page load (attached and pictured) Sapper-Production-Crash.txt

It seems to be related to the "ExtractTextPlugin":

When manually disabled from the client webpack config the issues disappear.

Removing Component CSS also 'fixes' the issue.

Un-minified exception:

Sapper-Production-Crash-unmin.txt

Unfortunately I don't have much time to look into it further.
Hope this info is helpful.

[Rich-Harris]

Can you try with Sapper 0.4? It includes this PR which appears to be the same issue

[ISNIT0]

Will do either this evening, or tomorrow evening.

[ISNIT0]

Can confirm that this has fixed since I last tried (though there seem to be other deployment issues).
I'll close this.