chart.js - Remove space for unrequired ticks -

i'm trying generate chart has year & week numbers (201601, 201602 ... 201651, 201652) across x-axis. i've managed trim out unwanted ticks, chartjs not trimming out dead space. here's example:

here's code have tried far... don't worry white bar on blue bar, i'm happy artefact now, i'm trying trim out dead space. ignore fact data empty, being loaded in dynamically via ajax call:

chart = new chart(canvas, {     type: 'horizontalbar',     data: {         labels: [],         datasets: []     },     options: {         legend: { display: false },         scales: {             xaxes: [{                 ticks: {                     autoskip: true,                     beginatzero: false,                     stepsize: 1                 },                 position: 'top',                 type: "linear",                 afterbuildticks: function (scale) {                     var tickslength = scale.ticks.length;                      var newticks = [];                      (var index = 0; index < tickslength; index++) {                         if ((scale.ticks[index] % 100 >= 1) && (scale.ticks[index] % 100 <= 52)) {                             newticks.push(scale.ticks[index]);                         }                     }                      scale.ticks = newticks;                 }             }],             yaxes: [{                 stacked: true             }]         },         tooltips: { enabled: true }     } });