title: ElasticSearch Query_String search forward slash excaping
body: <p>I'm trying to write a query for this filepath:</p>
  
  <p><code>C:/This/Is/My/File.txt</code></p>
  
  <p>like this:</p>
  
  <pre><code>{
      "query": {
          "query_string": {
             "default_field": "filePath",
             "query": "C:This\\/Is\\/My\\/File.txt"
          }
      }
  }
  </code></pre>
  
  <p>However it is giving me an error saying:</p>
  
  <blockquote>
    <p>SearchPhaseExecutionException[Failed to execute phase [query]</p>
  </blockquote>
  
  <p>So I'm assuming it has something to do with the escaping but it seems to be correct.</p>
  
  <p>Is there something I'm missing here?</p>