1.5.1+ broke my old $.get() json calls

1.5.1+ broke my old $.get() json calls

Hi,
functions like:

  1. function showData(id) {

  3. $.get("/url/getdata", {id : id}, function(data) {
  4. $("#dialogData").html(data);
  5. $("#dialogData").dialog({width: 500, modal: true, zIndex:22000});
  6. }, "json");
  7. }
no longer work with the addition of 1.5.

Looking at firebug, the correct data is returned, but the function breaks after entering the callback.
Everything simply stops.

How can I fix this? I read about the changes to Ajax call in 1.5, but I have over a thousand such calls through my project -> I cannot even begin to think about hunting them all down and changing them, let alone bug testing it all.