Elasticsearch reports too_long_http_line_exception if scrolling through results

[Radiergummi]

Sometimes when scrolling through a result set, Elasticsearch will throw an Exception such as this:

Elasticsearch\Common\Exceptions\BadRequest400Exception: {"error":{"root_cause":[{"type":"too_long_http_line_exception","reason":"An HTTP line is larger than 4096 bytes."}],"type":"too_long_http_line_exception","reason":"An HTTP line is larger than 4096 bytes."},"status":400}

This can be fixed by passing the scroll ID in the body instead of the URL.