Abort Image Request

OS	Browser	“”	null	remove	delete	stop	StopImage	Stop	Button	Timeout
Windows	IE6,7,8	√(e)	√(e)	II	×	×	×	×	×	21s (e)
	FF4,5	II	II	II	×	II	×	×	II	21s (e)
	Chrome12	×	×	×	×	II	×	×	II	21s (e)
	Safari4,5	×	×	×	×	II	×	×	II	21s (e)
	Opera9	×	√(e)	×	×	II	×	×	II	47s (e)
	Opera11	II	√(e)	II	II	II	×	×	II	47s (e)
Mac OS X	Safari5	×	×	×	×	II	×	×	II	1.2m (e)
	Chrome12	×	×	×	×	II	×	×	II	1.2m (e)
	FF4,5	II	II	II	×	II	×	×	II	1m’15s (e)
Ubuntu	FF4,5	II	II	II	×	II	×	×		3m’9s (e)
Ubuntu	Chrom(e/ium)12	×	×	×	×	II	×	×		3.2m (e)

Windows XP, Server 2003, 7.

Mac OS X 10.6.7

Ubuntu 11.04

标题注解：

“”img.src = “”nullimg.src = nullrevmoveimg.removeAttribute(“src”)deletedelete img[“src”]stopwindow.stop()StopImagedocument.execCommand(“StopImage”)Stopdocument.execCommand(“Stop”)ButtonBrowser Stop Button.

图标注解：

√能够 Abort 图片请求，并回调 (e)onerror/(a)onabort/(l)onload 函数。II能够 Abort 图片请求，但不触发任何事件进行回调。≈部分版本支持。如 Stop/StopImage 在 .NET Framework 3.0 中取消了支持。×不能 Abort 图片请求，或不支持该方法。

事件回调

var img = new Image();
img.onload = function(){out.innerHTML += “loaded.”;};
img.onabort = function(){out.innerHTML += “aborted.”;};
img.onerror = function(){out.innerHTML += “errored.”;};
window.setTimeout(function(){
    out.innerHTML += “before.”;
    // abort.
    img.src = null;
    out.innerHTML += “after.” + img.complete;
}, 2000);

测试结果：

IEbefore.errored.after.Operabefore.after.errored.FFbefore.after.Chromebefore.after.Safaribefore.after.

事件回调

See Also