[Iryna-Kahamlyk]

JIRA: https://issues.apache.org/jira/browse/TINKERPOP-3095

Summary

g.with_("language", ...) was silently dropped from remote traversals in gremlin-javascript.
DriverRemoteConnection only forwards option keys from a fixed allow-list, and language was missing from it. This adds it, with unit and integration tests.

No change is needed in the other GLVs. Java, Python and .NET already forward language from with() to the request, and Go was fixed on master.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.48%. Comparing base (a28cd1f) to head (1fde96f).
⚠️ Report is 909 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3727      +/-   ##
============================================
+ Coverage     76.35%   77.48%   +1.12%     
- Complexity    13424    15001    +1577     
============================================
  Files          1012     1050      +38     
  Lines         60341    66745    +6404     
  Branches       7075     7994     +919     
============================================
+ Hits          46076    51720    +5644     
- Misses        11548    11817     +269     
- Partials       2717     3208     +491     

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[spmallette]

For committers - Created PR root bead: tp-hk6h

🤖 Agent assisted comment.

[Cole-Greer]

LGTM

VOTE +1 (pending changelog update)

[kenhuuu]

The original issue is already solved in Java, Python, .NET, and Go: g.with("language", ...) is extracted into the request options. Adding connection-level defaults across every GLV is unnecessary and creates inconsistent transaction behavior: Java, Python, .NET, and Go drop the default when creating a transaction-bound connection, while JavaScript preserves it. Users would therefore get different engines for equivalent transactional traversals depending on the GLV.

Please reduce this PR to:

• Add language to JavaScript’s traversal-option allowlist.
• Add focused JavaScript tests.
• Update documentation only as needed for traversal-level selection.