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Summary

• Delete all elements matched by a broadcast what.Delete in one DeleteElements call before queuing browser Delete frames.
• Preserve the target snapshot and outbound frames, with a test covering deletion, an unaffected element, and stale frame filtering.
• Add a benchmark for deleting 100 of 1,000 tagged elements.

Performance

Six runs with benchstat: 163.22 µs/op to 10.73 µs/op (93.43% faster, p=0.002), with unchanged allocations.

Verification

• JAWS_REQUIRE_NODE=1 go test ./... -count=1
• JAWS_REQUIRE_NODE=1 go test -race ./... -count=1
• go vet ./...

Fixes #428