Sending newlines with the IDE http client

Trying to test out some Elasticsearch batch requests, but Elasticvsearch being Elasticsearch has some funky syntax rules. They use a Content type called `application/x-ndjson` which is a newline delimited json format. 

It wants something like this in curl format

curl -H "Content-Type: application/x-ndjson" -H "Accept: application/json" -XGET http://localhost:9200/_msearch -d '
{ "index": "docs_pages2" }
{ "query": { "dis_max": { "queries": [ { "nested": { "path": "versions", "query": { "match": { "versions.page_content": "Test Search" }}}}]}}}
'

The problem is that when I create this in the IDE's http client like this

GET http://localhost:9200/_msearch
Content-Type: application/x-ndjson
Accept: application/json

{ "index": "docs_pages2" }
{ "query": { "dis_max": { "queries": [ { "nested": { "path": "versions", "query": { "match": { "versions.page_content": "Test Search" }}}}]}}}

###

Elasticsearch then freaks out at me

HTTP/1.1 400 Bad Request
content-type: application/json; charset=UTF-8

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "The msearch request must be terminated by a newline [\n]"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "The msearch request must be terminated by a newline [\n]"
  },
  "status": 400
}

I've tried

GET http://localhost:9200/_msearch
Content-Type: application/x-ndjson
Accept: application/json

{ "index": "docs_pages2" }\n
{ "query": { "dis_max": { "queries": [ { "nested": { "path": "versions", "query": { "match": { "versions.page_content": "Test Search" }}}}]}}}\n
\n

###

But I get the same issue.

It appears that when the IDE sends the payload, it's stripping the newlines

Is there anything I can do to deal with this?

IntelliJ IDEA Ultimate 2019.1