Description

Addresses bug in Java 8 which uses a confusing default "Accept" header if not defined: https://bugs.openjdk.org/browse/JDK-8163921

Not a breaking change, but makes our API logs easier to read and consistent with expected behavior.

Testing

Pictures of cassettes below confirm new "Accept" header being included in the request.

Before:

After:

Cassettes do not need to be re-recorded since we do not enforce matching by headers in our VCR.

Please select the option(s) that are relevant to this PR.

[x] Bug fix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[ ] Improvement (fixing a typo, updating readme, renaming a variable name, etc)