Invariant package JS warning on page publish

[emteknetnz]

I don't think this is having an end user impact?

Link goes to here https://github.com/apollographql/invariant-packages

Likely a side-effect from #949, or one of the other upgrade JS pull-requests that happened recently

Acceptance criteria

• The console warning is squash.
• If the connection drops, you don't end up with an infinite loop.

PRs

• FIX Don't cause invariant violations #1015

[GuySartorelli]

Closing in favour of #1158