ucm service result as Json

 Hello,

I have an issue using a ucm service via ajax. I request the service with IsJson=1 and do the following:

jQuery.ajax({
    url: "<$HttpCgiPath$>",
    type: "POST",
    dataType: 'json',
    contentType: 'UTF-8',
    cache: false,  
    beforeSend: function(xhr) { 
     ...
     },
    data: idcServiceAndParam,
    success: function(jdata) { 
     ...     },
    error: function(XMLHttpRequest, textStatus, errorThrown){

      ...
      }

The responds data represents a result from database. 

Everything works fine, but if there is a field in database which has a single qoute in it like a french street name (e.g."Rue de i'lle Monsin 85") I get one backslash in front of the single quote and the Json result is not valid (e.g."