browser - 为什么 Git 在其查询字符串中有一个 'Check ✓' 标记？

Question

我在 Git 上搜索时发现查询字符串中有一个参数 utf8其值为 ✓ !不是 utf8=yes或 utf8=true .

Chrome 和 Firefox 中的完整 URL 如下:

https://github.com/Modernizr/Modernizr/search?utf8=✓&q=browser&type=

但在 IE 中遵循:

https://github.com/Modernizr/Modernizr/search?utf8=%E2%9C%93&q=browser&type=

所以这似乎是一种检测 URL 编码方案的方法，但有人确定吗？另外，没有任何更简单的方法可以做到这一点吗？

Answer 1

来自 StackExchange question :

By default, older versions of IE (<=8) will submit form data in Latin-1 encoding if possible. By including a character that can't be expressed in Latin-1, IE is forced to use UTF-8 encoding for its form submissions, which simplifies various backend processes, for example database persistence.

If the parameter was instead utf8=true then this wouldn't trigger the UTF-8 encoding in these browsers.This is a hack/feature of Rails (which Github is built with) to force IE to submit UTF-8 text.

这是 Rails 的一个特性(GitHub 是用它构建的)，尽管它不是特定于 Rails 的。