Solr and JSONP

Need to send an Ajax request to a Solr server that’s on a different domain? You will, of course, need to use JSONP instead of an ordinary JSON request, due to JavaScript’s cross-domain security restrictions. To get a properly padded response from Solr, add the json.wrf parameter to your query string, giving it the name of your callback function. In jQuery:

  url: mySolrUrl,
  data: myQueryParameters,
  success: mySuccessCallback,
  dataType: 'jsonp',
  jsonp: 'json.wrf'

Of course, for this to work the Solr server you’re accessing needs to be publicly accessible, which probably isn’t ideal for security.