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chrome插件 下载文件功能

目前在做一款chrome插件,其中有项功能是下载文件,即从服务端获取url后下载相应文件。
我用chrome.downloads.download浏览器自带API开发后发现,每一次下载都会出现确认框:
QQ截图20200610154841.png
而通过saveAs字段并不能控制其隐藏,在github上有对应的issue,这里也有相应的讨论。
似乎无法用chrome自带的API来完成此功能?
请问,现在一些下载功能的插件是如何实现这个功能的,是集成了native c++dll吗?
还是有其他的办法?
谢谢。


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var link = document.createElement('a');

link.setAttribute("download","文件名.jpg");
link.href = href;
link.click(); 

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