amm*_*mmu 15 javascript html5 internet-explorer svg html5-canvas
我想在canvas中使用foreignobject元素绘制HTML文本,在MDN我可以看到下面的链接(参见参考资料),这在Chrome和Mozilla浏览器中工作正常但在IE10中没有,我使用的是IE10.
浏览器模式:IE10和文档模式:标准
参考:https: //developer.mozilla.org/en/docs/HTML/Canvas/Drawing_DOM_objects_into_a_canvas
错误:
DOM7000: Access Denied. Resource access is restricted for cross-origin URL: 'blob:7C72C95F-3E3F-4CD6-804C-C2D8CCC06283'.
文件:
以下是代码段: -
<!DOCTYPE html>
<html>
<body>
<p><canvas id="canvas" style="border:2px solid black;" width="200" height="200"></canvas>
<script>
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var data = "<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'>" +
"<foreignObject width='100%' height='100%'>" +
"<div xmlns='http://www.w3.org/1999/xhtml' style='font-size:40px'>" +
"<em>I</em> like <span style='color:white; text-shadow:0 0 2px blue;'>cheese</span>" +
"</div>" +
"</foreignObject>" +
"</svg>";
var DOMURL = self.URL || self.webkitURL || self;
var img = new Image();
var svg = new Blob([data], {type: "image/svg+xml;charset=utf-8"});
var url = DOMURL.createObjectURL(svg);
img.onload = function() {
ctx.drawImage(img, 0, 0);
DOMURL.revokeObjectURL(url);
};
img.src = url;
</script>
</body>
</html>
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