javascript - 内容脚本的替代方案？

Question

就目前情况而言，Google Chrome 扩展程序可以在加载页面时触发页面上的内容脚本。

有没有办法在页面加载之前将脚本注入(inject)到页面中？它类似于内容脚本，只不过它在请求页面时触发，而不是等待页面加载。

Answer 1

您检查过内容脚本的 run_at 属性吗？

Optional. Controls when the files in js are injected. Can be "document_start", "document_end", or "document_idle". Defaults to "document_idle".
In the case of "document_start", the files are injected after any files from css, but before any other DOM is constructed or any other script is run. [...]

^{来源:http://developer.chrome.com/extensions/content_scripts.html}