fix(offscreen canvas): set negative position to move offscreen (#50)

re: #43
elastic · Feb 8, 2019 · 0f61ac8 · 0f61ac8
1 parent 7ed890c
commit 0f61ac8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/lib/axes/canvas_text_bbox_calculator.ts b/src/lib/axes/canvas_text_bbox_calculator.ts
@@ -9,6 +9,9 @@ export class CanvasTextBBoxCalculator implements BBoxCalculator {
 
   constructor(rootElement?: HTMLElement) {
     this.offscreenCanvas = document.createElement('canvas');
+    this.offscreenCanvas.style.position = 'absolute';
+    this.offscreenCanvas.style.top = '-9999px';
+
     this.context = this.offscreenCanvas.getContext('2d');
     this.attachedRoot = rootElement || document.documentElement;
     this.attachedRoot.appendChild(this.offscreenCanvas);