highslide-software/highcharts.com — Issue #795: Tooltip/hover broken on bar charts in IE8
Author: PVince81
Created: 2012-02-29 08:37:58+00:00
State: open

Create a bar chart like this one and display it in IE8:

`var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
defaultSeriesType: 'bar'
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
series: [{
data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
}, {
data: [194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4]
}]
});
`

Try to hover over the bars. They don't highlight, no tooltip appears.
If you hover on the left portion of the chart and are lucky, you might see a tooltip appear sometimes.
It seems that the mouse position calculation in relation to the chart is wrong.