小编mmm*_*mmm的帖子

我有一些使用如下属性的css clase：

.rfs_left_btn
{
width: 176px;
height: 20px;
background: #fefefe;
background: -moz-linear-gradient(top,  #fefefe 0%, #fafafa 48%, #f1f1f1 50%, #e9e9e9 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#fefefe), color-stop(48%,#fafafa), color-stop(50%,#f1f1f1), color-stop(100%,#e9e9e9));
background: -webkit-linear-gradient(top,  #fefefe 0%,#fafafa 48%,#f1f1f1 50%,#e9e9e9 100%);
background: -o-linear-gradient(top,  #fefefe 0%,#fafafa 48%,#f1f1f1 50%,#e9e9e9 100%);
background: -ms-linear-gradient(top,  #fefefe 0%,#fafafa 48%,#f1f1f1 50%,#e9e9e9 100%);
background: linear-gradient(top,  #fefefe 0%,#fafafa 48%,#f1f1f1 50%,#e9e9e9 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fefefe', endColorstr='#e9e9e9',GradientType=0 );
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px; /* Drop shadow*/
-webkit-box-shadow: 0px 1px 1px #cecece;
-moz-box-shadow: 0px 1px …

更改Javascript Image对象的.src属性时,会将请求发送到指定的URL.

// new image object    
var imgObject = new Image();

// assign the path to the image to the src property   
imgObject.src = 'http://example.com/' + 'image/image.jpg';

服务器的响应包含与任何其他响应一样的标头.我的问题是:一旦服务器发送响应,有没有办法在Image对象的onready,onload或onreadystatechange事件中访问此标头？