Null value in data parm

[GG]

When making a request and one of the data key/value pairs is null, it shows up in the body the signature base string.  Is that normal behavior?

Example:

the caption value is null and shows up in the body as caption=& but is no where to be found in the signature base string.

var options = {

method: 'POST',

url: 'http://endpoint.com',

success: upload_success,

failure: upload_fail,

  headerz: {

 'Host': 'http://endpoint.com/',

 'Expect': ''

  },

  data: {

   'data' : imageURI,

   'caption' : caption,

   'tags' : 'tags',

   'state' : 'draft',

   'type' : 'photo'  

  }

}

[Rob Griffiths]

If I recall correctly, empty params should be excluded from the signature, but its highly likely they should also be excluded from the body.