[英]`background-size:100% or cover` causes javascript to slow
In FF 17 : 在FF 17中:
body{
background: url('foo/images/flowers.jpg');
background-size: 100%;
background-attachment: fixed;
}
causes the page to move slow, this means the animation and even the mouse pointer trailing across the screen. 导致页面移动缓慢,这意味着动画甚至鼠标指针都在屏幕上拖尾。
Once I remove the background image all is fine. 一旦我删除背景图像一切都很好。
To troubleshoot I removed the Base64 representation of the image and linked directly to the image as shown above. 要进行故障排除,我删除了图像的Base64表示,并直接链接到图像,如上所示。
I can continue to isolate in this manner, but I'm wondering if this is a known issue. 我可以继续以这种方式孤立,但我想知道这是否是一个已知的问题。
Isolating further it is this property causing the issue. 进一步隔离是造成这个问题的属性。
background-size: 100%;
这似乎是background-size:100% or cover
的问题background-size:100% or cover
已在新FF修复的background-size:100% or cover
。
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