curl is fine except ES with RestTemplate

[yangboz]

• {"error":{"root_cause":[{"type":"parse_exception","reason":"Failed to derive xcontent"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"my_index","node":"_we_qSCaQqOQhC71Ke1yjA","reason":{"type":"parse_exception","reason":"Failed to derive xcontent"}}]},"status":400}