虽然大多数人更喜欢在他们的浏览器中使用特定的网页作为主页，但也有人选择使用关于：改为空白。是关于：空白空白网页还是有特殊用途？今天的超级用户问答帖子回答了一位好奇的读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者“Jon的名字”想知道关于：空白页在web浏览器中，用于：

What is the about:blank page in a web browser used for? I was just wondering why it is there. Is it an actual webpage or just something that is built in? It seems to be completely empty except for the header and body.

什么是关于：空白页在web浏览器中？

答案

超级用户贡献者Keltari和bwDraco为我们提供了答案。首先，凯尔塔里：

It is simply a blank page that is built into some web browsers. Some people just like to have a blank page rather than see/load anything else when they start their web browser or open a new tab/page.

接着是bwDraco的回答：

The about URI scheme is designated for internal web browser use. It originated in Netscape Navigator, the web browser that gave rise to Mozilla Firefox. This includes about:blank.

Per IETF RFC 6694, about:blank is reserved for a blank page. Essentially, every web browser that supports about implements about:blank and it is pretty much the same everywhere.

Because about:blank is little more than a blank internal page, it does not depend on any external resources and serves as a good default on metered connecti*** or slow systems.

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