FF 52.0a2 (2017-01-09) Seems the issue is that `Response.Headers.getAll` is undefined on the latest firefox: https://github.com/zeit/next.js/blob/0551dc90a14d4beda8dc64058c4ae2837cc61ec6/client/next-prefetcher.js#L19 Apparently it's been removed from the latest spec: https://www.fxsitecompat.com/en-CA/docs/2016/headers-getall-has-been-removed-in-favour-of-get-now-returning-all-values/
FF 52.0a2 (2017-01-09)
Seems the issue is that
Response.Headers.getAllis undefined on the latest firefox:https://github.com/zeit/next.js/blob/0551dc90a14d4beda8dc64058c4ae2837cc61ec6/client/next-prefetcher.js#L19
Apparently it's been removed from the latest spec:
https://www.fxsitecompat.com/en-CA/docs/2016/headers-getall-has-been-removed-in-favour-of-get-now-returning-all-values/