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Found the solution for anyone interested: There’s a function which creates the charts, once the input range field changes its value. Wrapping it with a setTimeout function solved the issue. It seems like IE11 had problems with instant execution of the createChart function.
szenario_range_input.onchange = function() {
setTimeout(function() {
$('#myChart').remove();
$('#myChart2').remove();
$('.chart-mining-results').append('<canvas id="myChart" width="" height="128px"></canvas>');
$('.chart-development').append('<canvas id="myChart2" width="" height="128px"></canvas>');
charts();
}, 150);
}
Source:stackexchange.com