mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
Don't render SVG nodes if it taints canvas
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@@ -25,6 +25,21 @@ const testRangeBounds = document => {
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return false;
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};
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const testSVG = document => {
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const img = new Image();
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const canvas = document.createElement('canvas');
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const ctx = canvas.getContext('2d');
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img.src = `data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'></svg>`;
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try {
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ctx.drawImage(img, 0, 0);
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canvas.toDataURL();
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} catch (e) {
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return false;
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}
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return true;
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};
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const FEATURES = {
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// $FlowFixMe - get/set properties not yet supported
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get SUPPORT_RANGE_BOUNDS() {
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@@ -32,6 +47,12 @@ const FEATURES = {
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const value = testRangeBounds(document);
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Object.defineProperty(FEATURES, 'SUPPORT_RANGE_BOUNDS', {value});
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return value;
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},
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get SUPPORT_SVG_DRAWING() {
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'use strict';
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const value = testSVG(document);
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Object.defineProperty(FEATURES, 'SUPPORT_SVG_DRAWING', {value});
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return value;
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}
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};
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