Failed to execute 'toDataURL' on 'HTMLCanvasElement,在canvas.toDataURL()執行時候報錯解決方案

 

添加跨域條件   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' ;  //可選值：anonymous，*  

img.src =  'http://....' ;

 

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

 

視頻的話同上，<video width="320" height="240" controls="controls"  crossorigin="anonymous"></video>

若是視頻 video.crossOrigin = 'anonymous';  報錯的話，能夠在標籤上面加該屬性。

 

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

github:  https://github.com/longfei59418888/vui   （很不錯的vue2.0組件庫，記得給一個 start,之後有一塊兒討論，各類好組件）