History of severe hypersensitivity reaction to any monoclonal antibody History of severe hypersensitivity reaction to any monoclonal antibody History of severe hypersensitivity reaction to any monoclonal antibody History of severe hypersensitivity reaction to any monoclonal antibody Patients with a history severe (>= grade 3) hypersensitivity reaction to a monoclonal antibody are ineligible EXCLUSION CRITERIA FOR STRATUM C: Patients with a history severe (>= grade 3) hypersensitivity reaction to a monoclonal antibody are ineligible History of severe hypersensitivity reaction to any monoclonal antibody No history of severe hypersensitivity to a monoclonal antibody History of severe hypersensitivity reaction to any monoclonal antibody Have a known immediate or delayed hypersensitivity reaction or idiosyncrasy to talimogene laherparepvec or any of its components or nivolumab, or history of severe hypersensitivity reaction to any monoclonal antibody