title: chart.js why are my hover effects not working?
body: <p>I have a bit of a Problem, i've a little chart with 1440 data Points, and if i display the chart fullscreen, the chart doesn't shows up any hover effects, this includes the tooltips too. If i look at the Chart with open Dev Tools in chrome, all works fine...
  Here is my Code:</p>
  
  <pre><code>var chart = new Chart(
    ctx,
    {
      type: 'line',
      data: {
        datasets: [{
          label: 'Temperatur',
          borderColor: '#f00',
          backgroundColor: '#ff000033',
          data: [],
        }]
      },
      options: {
        scales: {
            xAxes: [{
                type: 'time',
                time: {
                    unit: 'minute',
                    displayFormats: {
                        minute: 'HH:mm'
                    }
                }
            },
            {
                type: 'time',
                time: {
                    unit: 'day',
                    displayFormats: {
                        minute: 'HH:mm'
                    }
                }
            }],
            yAxes: [{
              ticks:{
                beginAtZero: true
              }
            }]
        },
        backgroundColor: '#011627',
        elements: {
            point:{
                radius: 0,
                hitRadius: 5
            }
        }
      }
    }
  );
  </code></pre>
  
  <p>if you have any ideas, how i can get the hover effects working, let me know!
  Thanks</p>
  
  <hr>
  
  <h2>Edit:</h2>
  
  <p>I've figured something out. in one specific resolution, the chart is constantly updating the charts(1471x735) resolution, i've tried different resolutions, and they all work fine..</p>