为Chrome扩展程序指定本机消息传递主机

Question

I am using native messaging API in Chrome extension, and I want to ship the native application within my extension.

In Windows, I add a registry key under HKLM\\SOFTWARE\\Google\\Chrome\\NativeMessagingHosts . Since my application is inside the extension folder after installed, I reference the full path by " %LOCALAPPDATA%\\Google\\Chrome\\User Data\\Default\\Extensions\\...\\....json ". But in this way, my extension complains "Specified native messaging host not found.".

If I expand the %LOCALAPPDATA% and write the path as " C:\\Users\\...\\AppData\\Local\\Google\\Chrome\\User Data\\Default\\Extensions\\...\\....json ", then my extension can successfully communicate with the host.

I wonder if this is an intended behavior? Thank you for your help.

Answer 1

There is no expansion of environment variables in the current Chromium code . It sounds like a reasonable feature request, though there might be security reasons not to do it. If you file a bug , we'll have a look and see whether it's feasible.