Variable CORS_ALLOWED_OPERATIONS`Const`

CORS_ALLOWED_OPERATIONS: readonly [
    "b2_download_file_by_name",
    "b2_download_file_by_id",
    "b2_upload_file",
    "b2_upload_part",
    "s3_get",
    "s3_put",
    "s3_head",
    "s3_delete",
] = ...

All CORS operations accepted by B2 bucket CORS rules.