Uncaught DOMException: Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may no

时间 2020-01-24

标签 uncaught domexception failed execute todataurl htmlcanvaselement tainted canvases 繁體版

原文原文链接

转载：https://www.jianshu.com/p/6fe06667b748html 1：背景html5 最近在作一个图片内容识别的项目，采用的是阿里巴巴的付费接口。大体流程为：web 1：用户上传图片 2：将图片转为base64的格式发送给阿里的接口 3：阿里接口返回图片的内容信息chrome 2：遇到的问题canvas 这里边第二步转base64 ，我采用html5的canvas,将图片

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1. Uncaught SecurityError: Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may n
2. Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported
3. 错误提示Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported.
4. fabric.js 解决Uncaught DOMException: Failed to execute 'toDataURL' on 'HTML
5. 使用websocket传图片报错 exceptionFailed to execute 'toDataURL' on 'HTMLCanvasElement'
6. Uncaught DOMException: Failed to execute 'removeChild' on 'Node': The node ……
7. Uncaught DOMException: Failed to execute 'drawImage' on 'CanvasRenderingContext2D'：
8. DOMException: Failed to execute 'insertBefore' on 'Node'
9. Failed to execute 'toDataURL' on 'HTMLCanvasElement,在canvas.toDataURL()执行时候报错解决方案
10. Uncaught (in promise) DOMException: Failed to execute 'open' on 'XMLHttpRequest': Invalid URL
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1. Uncaught SecurityError: Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may n
2. Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported
3. 错误提示Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported.
4. fabric.js 解决Uncaught DOMException: Failed to execute 'toDataURL' on 'HTML
5. 使用websocket传图片报错 exceptionFailed to execute 'toDataURL' on 'HTMLCanvasElement'
6. Uncaught DOMException: Failed to execute 'removeChild' on 'Node': The node ……
7. Uncaught DOMException: Failed to execute 'drawImage' on 'CanvasRenderingContext2D'：
8. DOMException: Failed to execute 'insertBefore' on 'Node'
9. Failed to execute 'toDataURL' on 'HTMLCanvasElement,在canvas.toDataURL()执行时候报错解决方案
10. Uncaught (in promise) DOMException: Failed to execute 'open' on 'XMLHttpRequest': Invalid URL

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