C3 Extent not working as expected - d3.js

Question

I'm creating a pretty simple line graph and want the initial load to be a section of all available data, so am setting extent on the x axis:
This is how I am setting the extent:
axis: {
"x": {
"type": "timeseries",
"tick": {
"format": "%d/%m/%Y"
},
"label": {
"text": "X Label",
"position": "outer-center"
},
"padding": {
"left": 0
},
"extent": ["2017-10-01", "2017-10-05"]
},
"y": {
"label": {
"text": "Y Label",
"position": "outer-middle"
}
}
},
But it is ignored. The chart just shows the full extent of the data.
Is this the correct way to show a subset of the data when the chart is generated?
This is the full code and here's a fiddle (I tried a code snippet but didn't work)
const columnData = [
["x", "2017-10-01", "2017-10-02", "2017-10-03", "2017-10-04", "2017-10-05", "2017-10-06", "2017-10-07", "2017-10-08", "2017-10-09", "2017-10-10", "2017-10-11", "2017-10-12", "2017-10-13", "2017-10-14", "2017-10-15", "2017-10-16"],
["data0", -55, -50, 11, -18, 39, 65, -84, -15, 14, 81, -79, 67, -48, 38, 99, -60],
["data1", 28, 14, -99, -33, 55, 71, 58, 66, 7, -88, 99, -37, -7, 59, -13, -57],
["data2", 14, 6, -9, 25, 42, -93, -6, 67, -35, 88, 36, 45, 42, 78, 51, -88],
["data3", 31, -73, -69, 45, 55, 15, -48, 41, -64, -12, -6, 14, -69, 16, -65, -73],
["data4", 98, 60, 82, 80, -62, -47, 55, 87, -65, 37, 22, 30, 93, -69, -88, 33],
["data5", -98, 57, 71, -25, -40, 13, 72, -90, 71, -71, -21, -9, -90, 73, -94, 100]
];
const generateChart = function() {
const chart = c3.generate({
data: {
"x": "x",
"columns": columnData,
"type": "line"
},
axis: {
"x": {
"type": "timeseries",
"tick": {
"format": "%d/%m/%Y"
},
"label": {
"text": "X Label",
"position": "outer-center"
},
"padding": {
"left": 0
},
"extent": ["2017-10-01", "2017-10-05"]
},
"y": {
"label": {
"text": "Y Label",
"position": "outer-middle"
}
}
},
zoom: {
enabled: true
},
transition: {
duration: 100
},
legend: {
show: false
},
subchart: {
show: true
},
size: {
height: 500
},
grid: {
x: {
show: true
},
y: {
show: true
}
}
});
};
generateChart();

Answer 1

As of 11th May 2018 it seems this is a bug: https://github.com/c3js/c3/issues/2357
I switched to earlier versions (see below) of C3 and D3 and it works as it should.
I am now using C3 version 0.4.10 and D3 version 3.5.0