Failed to execute 'toDataURL' on 'HTMLCanvasElement,在canvas.toDataURL()执行时候报错解决方案

 

添加跨域条件   crossorigin="anonymous"

 

【Redirect at origin 'http://xxx.xx.com' has been blocked from loading by Cross-Origin Resource Sharing

policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://sub2.xx.com' is therefore not allowed access.】

 

var  img =  new  Image;

img.onload = myLoader;

img.crossOrigin =  'anonymous' ;  //可选值：anonymous，*  

img.src =  'http://....' ;

 

或者是HTML中   <img src="" id="" crossorigin="anonymous">

 

视频的话同上，<video width="320" height="240" controls="controls"  crossorigin="anonymous"></video>

若是视频 video.crossOrigin = 'anonymous';  报错的话，能够在标签上面加该属性。

 

我的博客 ：不少好用的 npm 包 ， 能够看看  https://gilea.cn/　

github:  https://github.com/longfei59418888/vui   （很不错的vue2.0组件库，记得给一个 start,之后有一块儿讨论，各类好组件）