捕获CORS错误 [英] Catch CORS error

问题描述

我尝试载入CORS已停用的图片，并收到错误讯息：

I'm trying to load a CORS-disabled image, and get the error:

Cross-origin image load denied by Cross-Origin Resource Sharing policy.

我尝试捕获错误如下，但显然不会工作。

I've tried catching the error as follows, but that obviously will not work.

如何在设置<$ c $后捕获CORS错误c> .src 图片的属性？

How can I catch CORS errors after setting the .src property of an image?

推荐答案

使用 onError 事件。

if(image.addEventListener) {
    image.addEventListener('error', function (e) {
        e.preventDefault(); // Prevent error from getting thrown
        // Handle error here
    });
} else {
    // Old IE uses .attachEvent instead
    image.attachEvent('onerror', function (e) {
        // Handle error here
        return false; // Prevent propagation
    });
}

代码应该合并，这样你就不必两次写代码，但希望你能有这个想法。

Code should probably be consolidated so you don't have to write your code twice, but hopefully you've got the idea.

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