Change renderer to svg.

frontend/src/app/components/fee-distribution-graph/fee-distribution-graph.component.html

@@ -1,5 +1,5 @@
 <div class="fee-distribution-chart" *ngIf="mempoolVsizeFeesOptions; else loadingFees">
-  <div echarts [options]="mempoolVsizeFeesOptions"></div>
+  <div echarts [initOpts]="mempoolVsizeFeesInitOptions" [options]="mempoolVsizeFeesOptions"></div>
 </div>
 
 <ng-template #loadingFees>

frontend/src/app/components/fee-distribution-graph/fee-distribution-graph.component.ts

@@ -14,6 +14,9 @@ export class FeeDistributionGraphComponent implements OnInit, OnChanges {
   @Input() left: number | string = 30;
 
   mempoolVsizeFeesOptions: any;
+  mempoolVsizeFeesInitOptions = {
+    renderer: 'svg'
+  };
 
   constructor() { }