fixes #1380 by temporarily pinning a core-js to a specific beta version.

[mikeshultz]

Description:

apollo-tooling is running with a beta dep that has an evolving API. Some imports changed on them and they didn't pin a specific version. I'm not a huge fan of this PR, since a fix is on the way. So this is temporary and should be removed once it's fixed by our dependency. This does allow tests to run as expected, however, and it's unclear if this may cause issues in production.

References

apollographql/apollo-tooling#962
apollographql/apollo-tooling#961

Checklist:

• Test your work and double-check to confirm that you didn't break anything
• Wrap any displayed ETH addresses with formattedAddress
• Wrap any new text/strings for translation
• Run npm run translations if there are any changes to translated strings
• Map any new environment variables with a default value in the Webpack config
• Update any relevant READMEs and docs

[mikeshultz]

Closing this. They fixed their release.

apollographql/apollo-tooling#961 (comment)

[franckc]

Thanks in any case @mikeshultz for investigating ! :)