TypeError: Cannot read property 'forExport' of undefined

[RiccardoCampese]

Hi, I have a problem with this piece of code right here.
HighchartsChartComponent.prototype.ngOnDestroy = /** * @return {?} */ function () { // #44 if (this.chart) { // #56 // #56 this.chart.destroy(); this.chart = null; } };
Basically, when the onDestroy is called in my Angular component, this.chart.destroy(); throws an error:
TypeError: Cannot read property 'forExport' of undefined at c.Chart.destroy (highcharts.js:305) at HighchartsChartComponent.push.../../node_modules/highcharts-angular/fesm5/highcharts-angular.js.HighchartsChartComponent.ngOnDestroy (highcharts-angular.js:86)

Any idea on how to solve this problem? How can I make it not trigger that destroy method for my chart?

[cebor]

Resolved: the forExport-on-destroy crash was caused by Highcharts re-invoking the chart callback with a throwaway export copy, which overwrote the stored chart reference with one Highcharts immediately frees. Current versions guard against that doubled callback (if (!this.ref)), so the reference stays pinned to the live chart and destroy() no longer dereferences a freed chart. Regression coverage added in #401. Closing as fixed — please reopen if it still occurs on a current release.