问题描述
我使用的是Firebug 1.5.2，而在产品发布之前测试一个网站时，我可以看到阻塞部分请求所消耗的大量时间。
I'm using Firebug 1.5.2 and while testing a site before production release i can see a huge amount of time consumed by 'Blocking' parts of the requests.
Blocking的含义是什么？
What exactly does the 'Blocking' mean?
推荐答案
阻止以前（早期版本的FireBug）被称为排队。这实际上意味着请求正在排队等待可用的连接。据我所知默认情况下，永久连接的数量是限制在Firefox的最新版本到6，IE8也是6.早些时候它只是2.它可以由用户在浏览器设置更改。
也作为我知道，虽然JavaScript文件正在加载，所有其他资源（CSS，图像）被阻止
"Blocking" previously (earlier versions of FireBug) was called "Queuing". It actually means that request is sitting in queue waiting for available connection. As far as I know number of persistent connections by default is limited in last versions of Firefox to 6, IE8 also 6. Earlier it was only 2. It can be changed by user in browser settings.
Also as I know that while javascript file is loading, all other resources (css, images) are blocked
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