javascript image onError in case of non 200 response

Question

I have to count image loading time. onLoadHandler is responsible for it.

<img onError="onErrorHandler(this);" onLoad="onLoadHandler(this);" alt="" border='0' width='1' height='1'   src='http://exmaple.com/02.jpg'/>

It is works fine if image is normal file with 200 server response.

But partners provide chain of 302 redirects, and onError fires on first redirect. So i never get real loading image time.

Is there some workaround?

Thanks

Answer 1

Is the size of the image that you're redirected to the same size as the image you requested? If not, you can use this to detect an error.