[Chartjs]-How to make chartJs stacked bar always rounded when data is 0?

I have updated your Fiddle only line number 118:
https://jsfiddle.net/r7hvn2ox/

From:

if (rounded){

To:

if (rounded || this._chart.data.datasets[1].data[this._index] == 0) {

I know its fix for 2 datasets: [{}, {}] bars, but it will work perfectly in any of the values of datasets and also for this example.

Thanks everyone for answers.I tried below and worked perfectly for any amount of datasets.

var lastVisible;
  var datasetsLength = this._chart.data.datasets.length;
  this._chart.data.datasets.map((e,index)=>{
    lastVisible=datasetsLength-1;
    //to find the depth of datasets and get non-zero value
    for(var i=lastVisible;i>0;i--){
    if(!this._chart.getDatasetMeta(i).hidden){
      if(this._chart.data.datasets[i].data[this._index] != 0){
        lastVisible = i;
        break;
      }
    }
    } 
  })

You could add an additional expression to rounded variable if its rendering specific item. This is not the best approach.

var rounded = this._datasetIndex  === lastVisible || this._index === 2;

Alternatively you could compare values in each dataset

var cond = false;

if(this._datasetIndex === 0) {
  var datasets = this._chart.data.datasets;
  var dataset = datasets[this._datasetIndex];
  var currentData = dataset.data[this._index];
  var nextData = datasets[this._datasetIndex + 1].data[this._index]
  cond = currentData !== 0 && nextData === 0;
}

var rounded = this._datasetIndex  === lastVisible || cond;